79546740 has 192 divisors, whose sum is σ = 290594304. Its totient is φ = 15777792.

The previous prime is 79546729. The next prime is 79546751. The reversal of 79546740 is 4764597.

It is an interprime number because it is at equal distance from previous prime (79546729) and next prime (79546751).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 79546692 and 79546701.

It is a congruent number.

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, 92392 + ... + 93248.

It is an arithmetic number, because the mean of its divisors is an integer number (1513512).

Almost surely, 2^79546740 is an apocalyptic number.

79546740 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 79546740, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (145297152).

79546740 is an abundant number, since it is smaller than the sum of its proper divisors (211047564).

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

79546740 is a wasteful number, since it uses less digits than its factorization.

79546740 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906 (or 904 counting only the distinct ones).

The product of its (nonzero) digits is 211680, while the sum is 42.

The square root of 79546740 is about 8918.8979139802. The cubic root of 79546740 is about 430.0716303962.

The spelling of 79546740 in words is "seventy-nine million, five hundred forty-six thousand, seven hundred forty".