79835490 has 128 divisors (see below), whose sum is σ = 248209920. Its totient is φ = 17881344.

The previous prime is 79835489. The next prime is 79835513. The reversal of 79835490 is 9453897.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 99772 + ... + 100568.

It is an arithmetic number, because the mean of its divisors is an integer number (1939140).

Almost surely, 2^79835490 is an apocalyptic number.

79835490 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 79835490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (124104960).

79835490 is an abundant number, since it is smaller than the sum of its proper divisors (168374430).

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

79835490 is a wasteful number, since it uses less digits than its factorization.

79835490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 873 (or 867 counting only the distinct ones).

The product of its (nonzero) digits is 272160, while the sum is 45.

The square root of 79835490 is about 8935.0707887515. The cubic root of 79835490 is about 430.5913802788.

The spelling of 79835490 in words is "seventy-nine million, eight hundred thirty-five thousand, four hundred ninety".