927472921 has 4 divisors (see below), whose sum is σ = 927573712. Its totient is φ = 927372132.

The previous prime is 927472901. The next prime is 927472933. The reversal of 927472921 is 129274729.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 927472921 - 2²¹ = 925375769 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (927472901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35031 + ... + 55516.

It is an arithmetic number, because the mean of its divisors is an integer number (231893428).

Almost surely, 2^927472921 is an apocalyptic number.

It is an amenable number.

927472921 is a deficient number, since it is larger than the sum of its proper divisors (100791).

927472921 is a wasteful number, since it uses less digits than its factorization.

927472921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100790.

The product of its digits is 127008, while the sum is 43.

The square root of 927472921 is about 30454.4400867919. The cubic root of 927472921 is about 975.2150903067.

The spelling of 927472921 in words is "nine hundred twenty-seven million, four hundred seventy-two thousand, nine hundred twenty-one".