39990037 has 8 divisors (see below), whose sum is σ = 41264640. Its totient is φ = 38734800.

The previous prime is 39990019. The next prime is 39990107. The reversal of 39990037 is 73009993.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39990037 is a prime.

It is a super-2 number, since 2×39990037² = 3198406118522738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39990017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 589 + ... + 8962.

It is an arithmetic number, because the mean of its divisors is an integer number (5158080).

Almost surely, 2^39990037 is an apocalyptic number.

It is an amenable number.

39990037 is a deficient number, since it is larger than the sum of its proper divisors (1274603).

39990037 is an equidigital number, since it uses as much as digits as its factorization.

39990037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9683.

The product of its (nonzero) digits is 45927, while the sum is 40.

The square root of 39990037 is about 6323.7676269768. The cubic root of 39990037 is about 341.9667928270.

The spelling of 39990037 in words is "thirty-nine million, nine hundred ninety thousand, thirty-seven".