80747490 has 32 divisors (see below), whose sum is σ = 196454016. Its totient is φ = 21237120.

The previous prime is 80747479. The next prime is 80747497. The reversal of 80747490 is 9474708.

It is not an unprimeable number, because it can be changed into a prime (80747497) 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, 16246 + ... + 20625.

It is an arithmetic number, because the mean of its divisors is an integer number (6139188).

Almost surely, 2^80747490 is an apocalyptic number.

80747490 is an abundant number, since it is smaller than the sum of its proper divisors (115706526).

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

80747490 is a wasteful number, since it uses less digits than its factorization.

80747490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36954.

The product of its (nonzero) digits is 56448, while the sum is 39.

The square root of 80747490 is about 8985.9607165845. The cubic root of 80747490 is about 432.2247951283.

The spelling of 80747490 in words is "eighty million, seven hundred forty-seven thousand, four hundred ninety".