80901731 has 4 divisors (see below), whose sum is σ = 82041264. Its totient is φ = 79762200.

The previous prime is 80901713. The next prime is 80901749. The reversal of 80901731 is 13710908.

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

It is an interprime number because it is at equal distance from previous prime (80901713) and next prime (80901749).

It is a cyclic number.

It is not a de Polignac number, because 80901731 - 2¹⁴ = 80885347 is a prime.

It is a super-2 number, since 2×80901731² = 13090180157592722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 80901694 and 80901703.

It is not an unprimeable number, because it can be changed into a prime (80901761) 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, 569660 + ... + 569801.

It is an arithmetic number, because the mean of its divisors is an integer number (20510316).

Almost surely, 2^80901731 is an apocalyptic number.

80901731 is a deficient number, since it is larger than the sum of its proper divisors (1139533).

80901731 is a wasteful number, since it uses less digits than its factorization.

80901731 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1139532.

The product of its (nonzero) digits is 1512, while the sum is 29.

The square root of 80901731 is about 8994.5389542766. The cubic root of 80901731 is about 432.4998269237.

The spelling of 80901731 in words is "eighty million, nine hundred one thousand, seven hundred thirty-one".