78379732 has 12 divisors (see below), whose sum is σ = 137855200. Its totient is φ = 38992536.

The previous prime is 78379729. The next prime is 78379733. The reversal of 78379732 is 23797387.

It is a super-3 number, since 3×78379732³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78379733) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48438 + ... + 50029.

Almost surely, 2^78379732 is an apocalyptic number.

It is an amenable number.

78379732 is a deficient number, since it is larger than the sum of its proper divisors (59475468).

78379732 is a wasteful number, since it uses less digits than its factorization.

78379732 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98670 (or 98668 counting only the distinct ones).

The product of its digits is 444528, while the sum is 46.

The square root of 78379732 is about 8853.2328558555. The cubic root of 78379732 is about 427.9581072340.

The spelling of 78379732 in words is "seventy-eight million, three hundred seventy-nine thousand, seven hundred thirty-two".