97712222 has 4 divisors (see below), whose sum is σ = 146568336. Its totient is φ = 48856110.

The previous prime is 97712207. The next prime is 97712273. The reversal of 97712222 is 22221779.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22221779 = 2939 ⋅7561.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24428054 + ... + 24428057.

It is an arithmetic number, because the mean of its divisors is an integer number (36642084).

Almost surely, 2^97712222 is an apocalyptic number.

97712222 is a deficient number, since it is larger than the sum of its proper divisors (48856114).

97712222 is a wasteful number, since it uses less digits than its factorization.

97712222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48856113.

The product of its digits is 7056, while the sum is 32.

The square root of 97712222 is about 9884.9492664353. The cubic root of 97712222 is about 460.5919003075.

The spelling of 97712222 in words is "ninety-seven million, seven hundred twelve thousand, two hundred twenty-two".