97981044 has 24 divisors (see below), whose sum is σ = 261283008. Its totient is φ = 27994560.

The previous prime is 97981027. The next prime is 97981061. The reversal of 97981044 is 44018979.

It is an interprime number because it is at equal distance from previous prime (97981027) and next prime (97981061).

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 97980987 and 97981005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 583137 + ... + 583304.

It is an arithmetic number, because the mean of its divisors is an integer number (10886792).

Almost surely, 2^97981044 is an apocalyptic number.

It is an amenable number.

97981044 is an abundant number, since it is smaller than the sum of its proper divisors (163301964).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

97981044 is a wasteful number, since it uses less digits than its factorization.

97981044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1166455 (or 1166453 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 97981044 is about 9898.5374677272. The cubic root of 97981044 is about 461.0139009521.

The spelling of 97981044 in words is "ninety-seven million, nine hundred eighty-one thousand, forty-four".