70771408 has 20 divisors (see below), whose sum is σ = 145186020. Its totient is φ = 33304064.

The previous prime is 70771369. The next prime is 70771423. The reversal of 70771408 is 80417707.

It can be written as a sum of positive squares in 2 ways, for example, as 50808384 + 19963024 = 7128^2 + 4468^2 .

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 129823 + ... + 130366.

It is an arithmetic number, because the mean of its divisors is an integer number (7259301).

Almost surely, 2^70771408 is an apocalyptic number.

It is an amenable number.

70771408 is an abundant number, since it is smaller than the sum of its proper divisors (74414612).

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

70771408 is a wasteful number, since it uses less digits than its factorization.

70771408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260214 (or 260208 counting only the distinct ones).

The product of its (nonzero) digits is 10976, while the sum is 34.

The square root of 70771408 is about 8412.5743978880. The cubic root of 70771408 is about 413.6369038251.

The spelling of 70771408 in words is "seventy million, seven hundred seventy-one thousand, four hundred eight".