78226604 has 6 divisors (see below), whose sum is σ = 136896564. Its totient is φ = 39113300.

The previous prime is 78226597. The next prime is 78226619. The reversal of 78226604 is 40662287.

It is a super-2 number, since 2×78226604² = 12238803146745632, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9778322 + ... + 9778329.

It is an arithmetic number, because the mean of its divisors is an integer number (22816094).

Almost surely, 2^78226604 is an apocalyptic number.

It is an amenable number.

78226604 is a deficient number, since it is larger than the sum of its proper divisors (58669960).

78226604 is a wasteful number, since it uses less digits than its factorization.

78226604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19556655 (or 19556653 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 35.

The square root of 78226604 is about 8844.5804875076. The cubic root of 78226604 is about 427.6792294768.

The spelling of 78226604 in words is "seventy-eight million, two hundred twenty-six thousand, six hundred four".