97439774 has 4 divisors (see below), whose sum is σ = 146159664. Its totient is φ = 48719886.

The previous prime is 97439773. The next prime is 97439803. The reversal of 97439774 is 47793479.

It is a semiprime because it is the product of two primes.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (97439773) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24359942 + ... + 24359945.

It is an arithmetic number, because the mean of its divisors is an integer number (36539916).

Almost surely, 2^97439774 is an apocalyptic number.

97439774 is a deficient number, since it is larger than the sum of its proper divisors (48719890).

97439774 is a wasteful number, since it uses less digits than its factorization.

97439774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48719889.

The product of its digits is 1333584, while the sum is 50.

The square root of 97439774 is about 9871.1586959181. The cubic root of 97439774 is about 460.1634170488.

The spelling of 97439774 in words is "ninety-seven million, four hundred thirty-nine thousand, seven hundred seventy-four".