712699380 has 36 divisors (see below), whose sum is σ = 2161855332. Its totient is φ = 190053120.

The previous prime is 712699373. The next prime is 712699411. The reversal of 712699380 is 83996217.

712699380 is a `hidden beast` number, since 7 + 1 + 269 + 9 + 380 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 92390544 + 620308836 = 9612^2 + 24906^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1979541 + ... + 1979900.

It is an arithmetic number, because the mean of its divisors is an integer number (60051537).

Almost surely, 2^712699380 is an apocalyptic number.

It is an amenable number.

712699380 is an abundant number, since it is smaller than the sum of its proper divisors (1449155952).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

712699380 is a wasteful number, since it uses less digits than its factorization.

712699380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3959456 (or 3959451 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 712699380 is about 26696.4300984233. The cubic root of 712699380 is about 893.2412973548.

The spelling of 712699380 in words is "seven hundred twelve million, six hundred ninety-nine thousand, three hundred eighty".