97015971 has 12 divisors (see below), whose sum is σ = 140071128. Its totient is φ = 59701824.

The previous prime is 97015951. The next prime is 97015979. The reversal of 97015971 is 17951079.

It is not a de Polignac number, because 97015971 - 2¹⁷ = 96884899 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is not an unprimeable number, because it can be changed into a prime (97015979) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 95170 + ... + 96183.

It is an arithmetic number, because the mean of its divisors is an integer number (11672594).

Almost surely, 2^97015971 is an apocalyptic number.

97015971 is a deficient number, since it is larger than the sum of its proper divisors (43055157).

97015971 is a wasteful number, since it uses less digits than its factorization.

97015971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191382 (or 191369 counting only the distinct ones).

The product of its (nonzero) digits is 19845, while the sum is 39.

The square root of 97015971 is about 9849.6685731044. The cubic root of 97015971 is about 459.4953050079.

The spelling of 97015971 in words is "ninety-seven million, fifteen thousand, nine hundred seventy-one".