70865604 has 36 divisors (see below), whose sum is σ = 185769584. Its totient is φ = 23621544.

The previous prime is 70865603. The next prime is 70865621. The reversal of 70865604 is 40656807.

It is a happy number.

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

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (70865603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35482 + ... + 37425.

Almost surely, 2^70865604 is an apocalyptic number.

It is an amenable number.

70865604 is an abundant number, since it is smaller than the sum of its proper divisors (114903980).

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

70865604 is a wasteful number, since it uses less digits than its factorization.

70865604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72926 (or 72912 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The square root of 70865604 is about 8418.1710602719. The cubic root of 70865604 is about 413.8203379230.

The spelling of 70865604 in words is "seventy million, eight hundred sixty-five thousand, six hundred four".