78908500 has 48 divisors (see below), whose sum is σ = 188016192. Its totient is φ = 28692000.

The previous prime is 78908497. The next prime is 78908503. The reversal of 78908500 is 580987.

It is an interprime number because it is at equal distance from previous prime (78908497) and next prime (78908503).

It is a self number, because there is not a number n which added to its sum of digits gives 78908500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78908503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1674 + ... + 12673.

It is an arithmetic number, because the mean of its divisors is an integer number (3917004).

Almost surely, 2^78908500 is an apocalyptic number.

It is an amenable number.

78908500 is an abundant number, since it is smaller than the sum of its proper divisors (109107692).

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

78908500 is a wasteful number, since it uses less digits than its factorization.

78908500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14377 (or 14365 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 78908500 is about 8883.0456488752. The cubic root of 78908500 is about 428.9183196753.

The spelling of 78908500 in words is "seventy-eight million, nine hundred eight thousand, five hundred".