80946506 has 4 divisors (see below), whose sum is σ = 121419762. Its totient is φ = 40473252.

The previous prime is 80946473. The next prime is 80946521. The reversal of 80946506 is 60564908.

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

It can be written as a sum of positive squares in only one way, i.e., 80910025 + 36481 = 8995^2 + 191^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 80946506.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20236625 + ... + 20236628.

Almost surely, 2^80946506 is an apocalyptic number.

80946506 is a deficient number, since it is larger than the sum of its proper divisors (40473256).

80946506 is a wasteful number, since it uses less digits than its factorization.

80946506 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40473255.

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

The square root of 80946506 is about 8997.0276202755. The cubic root of 80946506 is about 432.5796011059.

The spelling of 80946506 in words is "eighty million, nine hundred forty-six thousand, five hundred six".