78126604 has 24 divisors (see below), whose sum is σ = 139748000. Its totient is φ = 38206080.

The previous prime is 78126599. The next prime is 78126619. The reversal of 78126604 is 40662187.

78126604 = 131² + 132² + ... + 618².

It is a super-2 number, since 2×78126604² = 12207532505145632, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 78126604.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47752 + ... + 49360.

Almost surely, 2^78126604 is an apocalyptic number.

It is an amenable number.

78126604 is a deficient number, since it is larger than the sum of its proper divisors (61621396).

78126604 is a wasteful number, since it uses less digits than its factorization.

78126604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1873 (or 1871 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 34.

The square root of 78126604 is about 8838.9255003083. The cubic root of 78126604 is about 427.4969123040.

The spelling of 78126604 in words is "seventy-eight million, one hundred twenty-six thousand, six hundred four".