70904 has 8 divisors (see below), whose sum is σ = 132960. Its totient is φ = 35448.

The previous prime is 70901. The next prime is 70913. The reversal of 70904 is 40907.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4424 + ... + 4439.

It is an arithmetic number, because the mean of its divisors is an integer number (16620).

2⁷⁰⁹⁰⁴ is an apocalyptic number.

It is an amenable number.

70904 is a deficient number, since it is larger than the sum of its proper divisors (62056).

70904 is a wasteful number, since it uses less digits than its factorization.

70904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8869 (or 8865 counting only the distinct ones).

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 70904 is about 266.2780501656. The cubic root of 70904 is about 41.3895062359.

The spelling of 70904 in words is "seventy thousand, nine hundred four".