38215961 has 8 divisors (see below), whose sum is σ = 43864704. Its totient is φ = 32614560.

The previous prime is 38215943. The next prime is 38215993. The reversal of 38215961 is 16951283.

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

It is a cyclic number.

It is not a de Polignac number, because 38215961 - 2²² = 34021657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38211961) 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, 10085 + ... + 13346.

It is an arithmetic number, because the mean of its divisors is an integer number (5483088).

Almost surely, 2^38215961 is an apocalyptic number.

It is an amenable number.

38215961 is a deficient number, since it is larger than the sum of its proper divisors (5648743).

38215961 is a wasteful number, since it uses less digits than its factorization.

38215961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23671.

The product of its digits is 12960, while the sum is 35.

The square root of 38215961 is about 6181.9059358745. The cubic root of 38215961 is about 336.8332288038.

The spelling of 38215961 in words is "thirty-eight million, two hundred fifteen thousand, nine hundred sixty-one".