78295904 has 12 divisors (see below), whose sum is σ = 154145124. Its totient is φ = 39147936.

The previous prime is 78295901. The next prime is 78295913. The reversal of 78295904 is 40959287.

It is a happy number.

It is a super-2 number, since 2×78295904² = 12260497166354432, which contains 22 as substring.

It is a Smith number, since the sum of its digits (44) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78295901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1223342 + ... + 1223405.

It is an arithmetic number, because the mean of its divisors is an integer number (12845427).

Almost surely, 2^78295904 is an apocalyptic number.

It is an amenable number.

78295904 is a deficient number, since it is larger than the sum of its proper divisors (75849220).

78295904 is a wasteful number, since it uses less digits than its factorization.

78295904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2446757 (or 2446749 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 44.

The square root of 78295904 is about 8848.4972735488. The cubic root of 78295904 is about 427.8054841496.

The spelling of 78295904 in words is "seventy-eight million, two hundred ninety-five thousand, nine hundred four".