80992763 has 4 divisors (see below), whose sum is σ = 85255560. Its totient is φ = 76729968.

The previous prime is 80992757. The next prime is 80992783. The reversal of 80992763 is 36729908.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80992763 - 2¹⁶ = 80927227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (80992783) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2131370 + ... + 2131407.

It is an arithmetic number, because the mean of its divisors is an integer number (21313890).

Almost surely, 2^80992763 is an apocalyptic number.

80992763 is a deficient number, since it is larger than the sum of its proper divisors (4262797).

80992763 is a wasteful number, since it uses less digits than its factorization.

80992763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4262796.

The product of its (nonzero) digits is 163296, while the sum is 44.

The square root of 80992763 is about 8999.5979354636. The cubic root of 80992763 is about 432.6619848317.

The spelling of 80992763 in words is "eighty million, nine hundred ninety-two thousand, seven hundred sixty-three".