713403978 has 32 divisors (see below), whose sum is σ = 1632932736. Its totient is φ = 203542848.

The previous prime is 713403947. The next prime is 713403979. The reversal of 713403978 is 879304317.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (713403979) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19200 + ... + 42372.

It is an arithmetic number, because the mean of its divisors is an integer number (51029148).

Almost surely, 2^713403978 is an apocalyptic number.

713403978 is an abundant number, since it is smaller than the sum of its proper divisors (919528758).

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

713403978 is a wasteful number, since it uses less digits than its factorization.

713403978 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23918.

The product of its (nonzero) digits is 127008, while the sum is 42.

The square root of 713403978 is about 26709.6233219415. The cubic root of 713403978 is about 893.5355629576.

The spelling of 713403978 in words is "seven hundred thirteen million, four hundred three thousand, nine hundred seventy-eight".