78498936 has 64 divisors (see below), whose sum is σ = 222199200. Its totient is φ = 25668864.

The previous prime is 78498881. The next prime is 78498943. The reversal of 78498936 is 63989487.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8020 + ... + 14876.

Almost surely, 2^78498936 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 78498936, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111099600).

78498936 is an abundant number, since it is smaller than the sum of its proper divisors (143700264).

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

78498936 is a wasteful number, since it uses less digits than its factorization.

78498936 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6925 (or 6915 counting only the distinct ones).

The product of its digits is 2612736, while the sum is 54.

The square root of 78498936 is about 8859.9625281375. The cubic root of 78498936 is about 428.1749510404.

The spelling of 78498936 in words is "seventy-eight million, four hundred ninety-eight thousand, nine hundred thirty-six".