97612121 has 8 divisors (see below), whose sum is σ = 98387784. Its totient is φ = 96839680.

The previous prime is 97612117. The next prime is 97612127. The reversal of 97612121 is 12121679.

It can be written as a sum of positive squares in 4 ways, for example, as 38875225 + 58736896 = 6235^2 + 7664^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 97612121 - 2² = 97612117 is a prime.

It is a super-2 number, since 2×97612121² = 19056252332237282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97612127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125891 + ... + 126663.

It is an arithmetic number, because the mean of its divisors is an integer number (12298473).

Almost surely, 2^97612121 is an apocalyptic number.

It is an amenable number.

97612121 is a deficient number, since it is larger than the sum of its proper divisors (775663).

97612121 is a wasteful number, since it uses less digits than its factorization.

97612121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1611.

The product of its digits is 1512, while the sum is 29.

The square root of 97612121 is about 9879.8846653187. The cubic root of 97612121 is about 460.4345625589.

The spelling of 97612121 in words is "ninety-seven million, six hundred twelve thousand, one hundred twenty-one".