898400979 has 24 divisors (see below), whose sum is σ = 1519251552. Its totient is φ = 500849280.

The previous prime is 898400969. The next prime is 898400981. The reversal of 898400979 is 979004898.

It is not a de Polignac number, because 898400979 - 2⁹ = 898400467 is a prime.

It is a super-3 number, since 3×898400979³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (898400969) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 171324 + ... + 176489.

It is an arithmetic number, because the mean of its divisors is an integer number (63302148).

Almost surely, 2^898400979 is an apocalyptic number.

898400979 is a deficient number, since it is larger than the sum of its proper divisors (620850573).

898400979 is a wasteful number, since it uses less digits than its factorization.

898400979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347867 (or 347864 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 54.

The square root of 898400979 is about 29973.3378021201. The cubic root of 898400979 is about 964.9172538605.

The spelling of 898400979 in words is "eight hundred ninety-eight million, four hundred thousand, nine hundred seventy-nine".