80956477 has 12 divisors (see below), whose sum is σ = 95013756. Its totient is φ = 68772480.

The previous prime is 80956459. The next prime is 80956501. The reversal of 80956477 is 77465908.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 423801 + 80532676 = 651^2 + 8974^2 .

It is not a de Polignac number, because 80956477 - 2⁷ = 80956349 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80956417) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1774 + ... + 12847.

It is an arithmetic number, because the mean of its divisors is an integer number (7917813).

Almost surely, 2^80956477 is an apocalyptic number.

It is an amenable number.

80956477 is a deficient number, since it is larger than the sum of its proper divisors (14057279).

80956477 is a wasteful number, since it uses less digits than its factorization.

80956477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14748 (or 14741 counting only the distinct ones).

The product of its (nonzero) digits is 423360, while the sum is 46.

The square root of 80956477 is about 8997.5817306652. The cubic root of 80956477 is about 432.5973621118.

The spelling of 80956477 in words is "eighty million, nine hundred fifty-six thousand, four hundred seventy-seven".