38690961 has 16 divisors (see below), whose sum is σ = 53145600. Its totient is φ = 25026768.

The previous prime is 38690957. The next prime is 38690983. The reversal of 38690961 is 16909683.

It is not a de Polignac number, because 38690961 - 2² = 38690957 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (38690161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12600 + ... + 15366.

It is an arithmetic number, because the mean of its divisors is an integer number (3321600).

Almost surely, 2^38690961 is an apocalyptic number.

It is an amenable number.

38690961 is a deficient number, since it is larger than the sum of its proper divisors (14454639).

38690961 is a wasteful number, since it uses less digits than its factorization.

38690961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2908.

The product of its (nonzero) digits is 69984, while the sum is 42.

The square root of 38690961 is about 6220.2058647604. The cubic root of 38690961 is about 338.2230271799.

The spelling of 38690961 in words is "thirty-eight million, six hundred ninety thousand, nine hundred sixty-one".