947252621 has 8 divisors (see below), whose sum is σ = 1082823360. Its totient is φ = 811744128.

The previous prime is 947252609. The next prime is 947252629. The reversal of 947252621 is 126252749.

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 947252621 - 2¹⁰ = 947251597 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (947252629) 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, 23645 + ... + 49533.

It is an arithmetic number, because the mean of its divisors is an integer number (135352920).

Almost surely, 2^947252621 is an apocalyptic number.

It is an amenable number.

947252621 is a deficient number, since it is larger than the sum of its proper divisors (135570739).

947252621 is a wasteful number, since it uses less digits than its factorization.

947252621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31123.

The product of its digits is 60480, while the sum is 38.

The square root of 947252621 is about 30777.4693729033. The cubic root of 947252621 is about 982.0990068764.

The spelling of 947252621 in words is "nine hundred forty-seven million, two hundred fifty-two thousand, six hundred twenty-one".