97777742 has 8 divisors (see below), whose sum is σ = 146734416. Its totient is φ = 48866272.

The previous prime is 97777741. The next prime is 97777759. The reversal of 97777742 is 24777779.

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

It is a nialpdrome in base 10.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97777741) 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, 5243 + ... + 14934.

It is an arithmetic number, because the mean of its divisors is an integer number (18341802).

Almost surely, 2^97777742 is an apocalyptic number.

97777742 is a deficient number, since it is larger than the sum of its proper divisors (48956674).

97777742 is a wasteful number, since it uses less digits than its factorization.

97777742 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22602.

The product of its digits is 1210104, while the sum is 50.

The square root of 97777742 is about 9888.2628403578. The cubic root of 97777742 is about 460.6948258099.

The spelling of 97777742 in words is "ninety-seven million, seven hundred seventy-seven thousand, seven hundred forty-two".