974723842 has 4 divisors (see below), whose sum is σ = 1462085766. Its totient is φ = 487361920.

The previous prime is 974723833. The next prime is 974723851. The reversal of 974723842 is 248327479.

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

It is an interprime number because it is at equal distance from previous prime (974723833) and next prime (974723851).

It can be written as a sum of positive squares in only one way, i.e., 756305001 + 218418841 = 27501^2 + 14779^2 .

It is a junction number, because it is equal to n+sod(n) for n = 974723792 and 974723801.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 243680959 + ... + 243680962.

Almost surely, 2^974723842 is an apocalyptic number.

974723842 is a deficient number, since it is larger than the sum of its proper divisors (487361924).

974723842 is a wasteful number, since it uses less digits than its factorization.

974723842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 487361923.

The product of its digits is 677376, while the sum is 46.

The square root of 974723842 is about 31220.5676117524. The cubic root of 974723842 is about 991.5026129326.

The spelling of 974723842 in words is "nine hundred seventy-four million, seven hundred twenty-three thousand, eight hundred forty-two".