78975036 has 72 divisors (see below), whose sum is σ = 231096320. Its totient is φ = 22273056.

The previous prime is 78975023. The next prime is 78975041. The reversal of 78975036 is 63057987.

It is a happy number.

It is a super-2 number, since 2×78975036² = 12474112622402592, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 78974982 and 78975000.

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 23 ways as a sum of consecutive naturals, for example, 17925 + ... + 21891.

Almost surely, 2^78975036 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 78975036, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (115548160).

78975036 is an abundant number, since it is smaller than the sum of its proper divisors (152121284).

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

78975036 is a wasteful number, since it uses less digits than its factorization.

78975036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4063 (or 4058 counting only the distinct ones).

The product of its (nonzero) digits is 317520, while the sum is 45.

The square root of 78975036 is about 8886.7899716377. The cubic root of 78975036 is about 429.0388410886.

The spelling of 78975036 in words is "seventy-eight million, nine hundred seventy-five thousand, thirty-six".