97070681 has 4 divisors (see below), whose sum is σ = 97090512. Its totient is φ = 97050852.

The previous prime is 97070621. The next prime is 97070689. The reversal of 97070681 is 18607079.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 97070681 - 2¹⁰ = 97069657 is a prime.

It is a super-2 number, since 2×97070681² = 18845434219607522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (97070689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3290 + ... + 14316.

It is an arithmetic number, because the mean of its divisors is an integer number (24272628).

Almost surely, 2^97070681 is an apocalyptic number.

It is an amenable number.

97070681 is a deficient number, since it is larger than the sum of its proper divisors (19831).

97070681 is a wasteful number, since it uses less digits than its factorization.

97070681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19830.

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 97070681 is about 9852.4454324802. The cubic root of 97070681 is about 459.5816628307.

The spelling of 97070681 in words is "ninety-seven million, seventy thousand, six hundred eighty-one".