80456690 has 8 divisors (see below), whose sum is σ = 144822060. Its totient is φ = 32182672.

The previous prime is 80456689. The next prime is 80456693. The reversal of 80456690 is 9665408.

It can be written as a sum of positive squares in 2 ways, for example, as 79085449 + 1371241 = 8893^2 + 1171^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×80456690² = 12946557931512200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80456693) 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, 4022825 + ... + 4022844.

Almost surely, 2^80456690 is an apocalyptic number.

80456690 is a deficient number, since it is larger than the sum of its proper divisors (64365370).

80456690 is a wasteful number, since it uses less digits than its factorization.

80456690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8045676.

The product of its (nonzero) digits is 51840, while the sum is 38.

The square root of 80456690 is about 8969.7653258042. The cubic root of 80456690 is about 431.7053067051.

The spelling of 80456690 in words is "eighty million, four hundred fifty-six thousand, six hundred ninety".