901872904 has 8 divisors (see below), whose sum is σ = 1691011710. Its totient is φ = 450936448.

The previous prime is 901872889. The next prime is 901872911. The reversal of 901872904 is 409278109.

It can be written as a sum of positive squares in only one way, i.e., 529460100 + 372412804 = 23010^2 + 19298^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56367049 + ... + 56367064.

Almost surely, 2^901872904 is an apocalyptic number.

It is an amenable number.

901872904 is a deficient number, since it is larger than the sum of its proper divisors (789138806).

901872904 is a wasteful number, since it uses less digits than its factorization.

901872904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112734119 (or 112734115 counting only the distinct ones).

The product of its (nonzero) digits is 36288, while the sum is 40.

The square root of 901872904 is about 30031.1988438690. The cubic root of 901872904 is about 966.1586498056.

The spelling of 901872904 in words is "nine hundred one million, eight hundred seventy-two thousand, nine hundred four".