220772097 has 72 divisors (see below), whose sum is σ = 404627496. Its totient is φ = 114960384.

The previous prime is 220772087. The next prime is 220772107. The reversal of 220772097 is 790277022.

It is an interprime number because it is at equal distance from previous prime (220772087) and next prime (220772107).

It can be written as a sum of positive squares in 4 ways, for example, as 14447601 + 206324496 = 3801^2 + 14364^2 .

It is not a de Polignac number, because 220772097 - 2⁶ = 220772033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (220772087) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 555903 + ... + 556299.

Almost surely, 2^220772097 is an apocalyptic number.

It is an amenable number.

220772097 is a deficient number, since it is larger than the sum of its proper divisors (183855399).

220772097 is a wasteful number, since it uses less digits than its factorization.

220772097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 527 (or 517 counting only the distinct ones).

The product of its (nonzero) digits is 24696, while the sum is 36.

The square root of 220772097 is about 14858.4015627523. The cubic root of 220772097 is about 604.3864617736.

The spelling of 220772097 in words is "two hundred twenty million, seven hundred seventy-two thousand, ninety-seven".