974479993 has 4 divisors (see below), whose sum is σ = 987829108. Its totient is φ = 961130880.

The previous prime is 974479951. The next prime is 974479997. The reversal of 974479993 is 399974479.

974479993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 399974479 = 1039 ⋅384961.

It can be written as a sum of positive squares in 2 ways, for example, as 339591184 + 634888809 = 18428^2 + 25197^2 .

It is a cyclic number.

It is not a de Polignac number, because 974479993 - 2⁹ = 974479481 is a prime.

It is a super-2 number, since 2×974479993² = 1899222513514560098, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (974479997) 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, 6674448 + ... + 6674593.

It is an arithmetic number, because the mean of its divisors is an integer number (246957277).

Almost surely, 2^974479993 is an apocalyptic number.

It is an amenable number.

974479993 is a deficient number, since it is larger than the sum of its proper divisors (13349115).

974479993 is a wasteful number, since it uses less digits than its factorization.

974479993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13349114.

The product of its digits is 15431472, while the sum is 61.

The square root of 974479993 is about 31216.6621053565. The cubic root of 974479993 is about 991.4199238416.

The spelling of 974479993 in words is "nine hundred seventy-four million, four hundred seventy-nine thousand, nine hundred ninety-three".