79487838 has 32 divisors (see below), whose sum is σ = 177081120. Its totient is φ = 26429760.

The previous prime is 79487833. The next prime is 79487843. The reversal of 79487838 is 83878497.

It is an interprime number because it is at equal distance from previous prime (79487833) and next prime (79487843).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (79487833) 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, 23068 + ... + 26288.

It is an arithmetic number, because the mean of its divisors is an integer number (5533785).

Almost surely, 2^79487838 is an apocalyptic number.

79487838 is an abundant number, since it is smaller than the sum of its proper divisors (97593282).

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

79487838 is a wasteful number, since it uses less digits than its factorization.

79487838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3689 (or 3683 counting only the distinct ones).

The product of its digits is 2709504, while the sum is 54.

The square root of 79487838 is about 8915.5952128840. The cubic root of 79487838 is about 429.9654524254.

The spelling of 79487838 in words is "seventy-nine million, four hundred eighty-seven thousand, eight hundred thirty-eight".