80938937 has 4 divisors (see below), whose sum is σ = 81012516. Its totient is φ = 80865360.

The previous prime is 80938933. The next prime is 80938939. The reversal of 80938937 is 73983908.

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

It can be written as a sum of positive squares in 2 ways, for example, as 46022656 + 34916281 = 6784^2 + 5909^2 .

It is a cyclic number.

It is not a de Polignac number, because 80938937 - 2² = 80938933 is a prime.

It is a super-2 number, since 2×80938937² = 13102223045379938, 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 = 80938891 and 80938900.

It is not an unprimeable number, because it can be changed into a prime (80938933) 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, 35114 + ... + 37347.

It is an arithmetic number, because the mean of its divisors is an integer number (20253129).

Almost surely, 2^80938937 is an apocalyptic number.

It is an amenable number.

80938937 is a deficient number, since it is larger than the sum of its proper divisors (73579).

80938937 is a wasteful number, since it uses less digits than its factorization.

80938937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73578.

The product of its (nonzero) digits is 326592, while the sum is 47.

The square root of 80938937 is about 8996.6069715199. The cubic root of 80938937 is about 432.5661177277.

The spelling of 80938937 in words is "eighty million, nine hundred thirty-eight thousand, nine hundred thirty-seven".