78758750 has 40 divisors (see below), whose sum is σ = 168733488. Its totient is φ = 27000000.

The previous prime is 78758749. The next prime is 78758753. The reversal of 78758750 is 5785787.

It is a junction number, because it is equal to n+sod(n) for n = 78758695 and 78758704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78758753) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4250 + ... + 13250.

Almost surely, 2^78758750 is an apocalyptic number.

78758750 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

78758750 is an abundant number, since it is smaller than the sum of its proper divisors (89974738).

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

78758750 is an equidigital number, since it uses as much as digits as its factorization.

78758750 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9030 (or 9015 counting only the distinct ones).

The product of its (nonzero) digits is 548800, while the sum is 47.

The square root of 78758750 is about 8874.6126676041. The cubic root of 78758750 is about 428.6468187479.

The spelling of 78758750 in words is "seventy-eight million, seven hundred fifty-eight thousand, seven hundred fifty".