901972 has 6 divisors (see below), whose sum is σ = 1578458. Its totient is φ = 450984.

The previous prime is 901963. The next prime is 901973. The reversal of 901972 is 279109.

901972 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 894916 + 7056 = 946^2 + 84^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 901972.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (901973) by changing a digit.

901972 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112743 + ... + 112750.

2⁹⁰¹⁹⁷² is an apocalyptic number.

It is an amenable number.

901972 is a deficient number, since it is larger than the sum of its proper divisors (676486).

901972 is a wasteful number, since it uses less digits than its factorization.

901972 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225497 (or 225495 counting only the distinct ones).

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 901972 is about 949.7220646063. The cubic root of 901972 is about 96.6194035040.

The spelling of 901972 in words is "nine hundred one thousand, nine hundred seventy-two".