80204906 has 4 divisors (see below), whose sum is σ = 120307362. Its totient is φ = 40102452.

The previous prime is 80204903. The next prime is 80204939. The reversal of 80204906 is 60940208.

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., 53071225 + 27133681 = 7285^2 + 5209^2 .

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (80204903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20051225 + ... + 20051228.

Almost surely, 2^80204906 is an apocalyptic number.

80204906 is a deficient number, since it is larger than the sum of its proper divisors (40102456).

80204906 is a wasteful number, since it uses less digits than its factorization.

80204906 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40102455.

The product of its (nonzero) digits is 3456, while the sum is 29.

The square root of 80204906 is about 8955.7191782682. The cubic root of 80204906 is about 431.2545048609.

The spelling of 80204906 in words is "eighty million, two hundred four thousand, nine hundred six".