97561048 has 64 divisors (see below), whose sum is σ = 209916000. Its totient is φ = 42135552.

The previous prime is 97561033. The next prime is 97561063. The reversal of 97561048 is 84016579.

It is an interprime number because it is at equal distance from previous prime (97561033) and next prime (97561063).

It is a self number, because there is not a number n which added to its sum of digits gives 97561048.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 191418 + ... + 191926.

Almost surely, 2^97561048 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 97561048, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104958000).

97561048 is an abundant number, since it is smaller than the sum of its proper divisors (112354952).

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

97561048 is a wasteful number, since it uses less digits than its factorization.

97561048 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644 (or 640 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The square root of 97561048 is about 9877.2996309720. The cubic root of 97561048 is about 460.3542450849.

The spelling of 97561048 in words is "ninety-seven million, five hundred sixty-one thousand, forty-eight".