37950981 has 8 divisors (see below), whose sum is σ = 50937024. Its totient is φ = 25132800.

The previous prime is 37950973. The next prime is 37951007. The reversal of 37950981 is 18905973.

It is a happy number.

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

It is not a de Polignac number, because 37950981 - 2³ = 37950973 is a prime.

It is a super-2 number, since 2×37950981² = 2880553917724722, which contains 22 as substring.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (37950901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41436 + ... + 42341.

It is an arithmetic number, because the mean of its divisors is an integer number (6367128).

Almost surely, 2^37950981 is an apocalyptic number.

It is an amenable number.

37950981 is a deficient number, since it is larger than the sum of its proper divisors (12986043).

37950981 is a wasteful number, since it uses less digits than its factorization.

37950981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83931.

The product of its (nonzero) digits is 68040, while the sum is 42.

The square root of 37950981 is about 6160.4367539972. The cubic root of 37950981 is about 336.0529164815.

It can be divided in two parts, 379 and 50981, that added together give a triangular number (51360 = T₃₂₀).

The spelling of 37950981 in words is "thirty-seven million, nine hundred fifty thousand, nine hundred eighty-one".