80072546 has 8 divisors (see below), whose sum is σ = 120188124. Its totient is φ = 40009840.

The previous prime is 80072543. The next prime is 80072557. The reversal of 80072546 is 64527008.

It can be written as a sum of positive squares in 2 ways, for example, as 78411025 + 1661521 = 8855^2 + 1289^2 .

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

It is a super-2 number, since 2×80072546² = 12823225245844232, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80072543) 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, 9185 + ... + 15636.

Almost surely, 2^80072546 is an apocalyptic number.

80072546 is a deficient number, since it is larger than the sum of its proper divisors (40115578).

80072546 is a wasteful number, since it uses less digits than its factorization.

80072546 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26436.

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 80072546 is about 8948.3264357085. The cubic root of 80072546 is about 431.0171450052.

The spelling of 80072546 in words is "eighty million, seventy-two thousand, five hundred forty-six".