898972621 has 8 divisors (see below), whose sum is σ = 904320000. Its totient is φ = 893641632.

The previous prime is 898972603. The next prime is 898972639. The reversal of 898972621 is 126279898.

It is an interprime number because it is at equal distance from previous prime (898972603) and next prime (898972639).

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 898972621 - 2⁷ = 898972493 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 (898972651) 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, 116130 + ... + 123628.

It is an arithmetic number, because the mean of its divisors is an integer number (113040000).

Almost surely, 2^898972621 is an apocalyptic number.

It is an amenable number.

898972621 is a deficient number, since it is larger than the sum of its proper divisors (5347379).

898972621 is a wasteful number, since it uses less digits than its factorization.

898972621 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8195.

The product of its digits is 870912, while the sum is 52.

The square root of 898972621 is about 29982.8721272663. The cubic root of 898972621 is about 965.1218656443.

The spelling of 898972621 in words is "eight hundred ninety-eight million, nine hundred seventy-two thousand, six hundred twenty-one".