80929827 has 32 divisors (see below), whose sum is σ = 133858560. Its totient is φ = 47900160.

The previous prime is 80929819. The next prime is 80929829. The reversal of 80929827 is 72892908.

It is not a de Polignac number, because 80929827 - 2³ = 80929819 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80929829) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9603 + ... + 15939.

It is an arithmetic number, because the mean of its divisors is an integer number (4183080).

Almost surely, 2^80929827 is an apocalyptic number.

80929827 is a deficient number, since it is larger than the sum of its proper divisors (52928733).

80929827 is a wasteful number, since it uses less digits than its factorization.

80929827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6400 (or 6394 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 80929827 is about 8996.1006552839. The cubic root of 80929827 is about 432.5498881052.

The spelling of 80929827 in words is "eighty million, nine hundred twenty-nine thousand, eight hundred twenty-seven".