97722782 has 4 divisors (see below), whose sum is σ = 146584176. Its totient is φ = 48861390.

The previous prime is 97722733. The next prime is 97722787. The reversal of 97722782 is 28722779.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 28722779 = 1051 ⋅27329.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97722787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24430694 + ... + 24430697.

It is an arithmetic number, because the mean of its divisors is an integer number (36646044).

Almost surely, 2^97722782 is an apocalyptic number.

97722782 is a deficient number, since it is larger than the sum of its proper divisors (48861394).

97722782 is a wasteful number, since it uses less digits than its factorization.

97722782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48861393.

The product of its digits is 197568, while the sum is 44.

The square root of 97722782 is about 9885.4833973863. The cubic root of 97722782 is about 460.6084921427.

The spelling of 97722782 in words is "ninety-seven million, seven hundred twenty-two thousand, seven hundred eighty-two".