97121740 has 48 divisors (see below), whose sum is σ = 209607552. Its totient is φ = 37783296.

The previous prime is 97121737. The next prime is 97121747. The reversal of 97121740 is 4712179.

It is not an unprimeable number, because it can be changed into a prime (97121747) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 260194 + ... + 260566.

It is an arithmetic number, because the mean of its divisors is an integer number (4366824).

Almost surely, 2^97121740 is an apocalyptic number.

It is an amenable number.

97121740 is an abundant number, since it is smaller than the sum of its proper divisors (112485812).

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

97121740 is a wasteful number, since it uses less digits than its factorization.

97121740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706 (or 704 counting only the distinct ones).

The product of its (nonzero) digits is 3528, while the sum is 31.

The square root of 97121740 is about 9855.0362759353. The cubic root of 97121740 is about 459.6622284102.

The spelling of 97121740 in words is "ninety-seven million, one hundred twenty-one thousand, seven hundred forty".