78792540 has 48 divisors (see below), whose sum is σ = 221575200. Its totient is φ = 20920320.

The previous prime is 78792533. The next prime is 78792547. The reversal of 78792540 is 4529787.

It is an interprime number because it is at equal distance from previous prime (78792533) and next prime (78792547).

It is a junction number, because it is equal to n+sod(n) for n = 78792492 and 78792501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78792547) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11736 + ... + 17184.

It is an arithmetic number, because the mean of its divisors is an integer number (4616150).

Almost surely, 2^78792540 is an apocalyptic number.

It is an amenable number.

78792540 is an abundant number, since it is smaller than the sum of its proper divisors (142782660).

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

78792540 is a wasteful number, since it uses less digits than its factorization.

78792540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5702 (or 5700 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 42.

The square root of 78792540 is about 8876.5162085133. The cubic root of 78792540 is about 428.7081110070.

The spelling of 78792540 in words is "seventy-eight million, seven hundred ninety-two thousand, five hundred forty".