78975380 has 24 divisors (see below), whose sum is σ = 180925920. Its totient is φ = 28718240.

The previous prime is 78975373. The next prime is 78975397. The reversal of 78975380 is 8357987.

It is a super-2 number, since 2×78975380² = 12474221292288800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179270 + ... + 179709.

It is an arithmetic number, because the mean of its divisors is an integer number (7538580).

Almost surely, 2^78975380 is an apocalyptic number.

It is an amenable number.

78975380 is an abundant number, since it is smaller than the sum of its proper divisors (101950540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

78975380 is a wasteful number, since it uses less digits than its factorization.

78975380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358999 (or 358997 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 47.

The square root of 78975380 is about 8886.8093261868. The cubic root of 78975380 is about 429.0394640244.

The spelling of 78975380 in words is "seventy-eight million, nine hundred seventy-five thousand, three hundred eighty".