974249999 has 4 divisors (see below), whose sum is σ = 975062400. Its totient is φ = 973437600.

The previous prime is 974249987. The next prime is 974250007. The reversal of 974249999 is 999942479.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 999942479 = 31 ⋅32256209.

It is a cyclic number.

It is not a de Polignac number, because 974249999 - 2⁸ = 974249743 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (974249399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404399 + ... + 406800.

It is an arithmetic number, because the mean of its divisors is an integer number (243765600).

Almost surely, 2^974249999 is an apocalyptic number.

974249999 is a deficient number, since it is larger than the sum of its proper divisors (812401).

974249999 is a wasteful number, since it uses less digits than its factorization.

974249999 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 812400.

The product of its digits is 13226976, while the sum is 62.

The square root of 974249999 is about 31212.9780540082. The cubic root of 974249999 is about 991.3419203331.

The spelling of 974249999 in words is "nine hundred seventy-four million, two hundred forty-nine thousand, nine hundred ninety-nine".