78334625 has 16 divisors (see below), whose sum is σ = 102910080. Its totient is φ = 59367600.

The previous prime is 78334609. The next prime is 78334637. The reversal of 78334625 is 52643387.

It is not a de Polignac number, because 78334625 - 2⁴ = 78334609 is a prime.

It is a super-2 number, since 2×78334625² = 12272626947781250, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14117 + ... + 18866.

It is an arithmetic number, because the mean of its divisors is an integer number (6431880).

Almost surely, 2^78334625 is an apocalyptic number.

It is an amenable number.

78334625 is a deficient number, since it is larger than the sum of its proper divisors (24575455).

78334625 is a wasteful number, since it uses less digits than its factorization.

78334625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33017 (or 33007 counting only the distinct ones).

The product of its digits is 120960, while the sum is 38.

The square root of 78334625 is about 8850.6850017386. The cubic root of 78334625 is about 427.8759958253.

The spelling of 78334625 in words is "seventy-eight million, three hundred thirty-four thousand, six hundred twenty-five".