974779613 has 2 divisors, whose sum is σ = 974779614. Its totient is φ = 974779612.

The previous prime is 974779601. The next prime is 974779627. The reversal of 974779613 is 316977479.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 873616249 + 101163364 = 29557^2 + 10058^2 .

It is a cyclic number.

It is not a de Polignac number, because 974779613 - 2¹⁶ = 974714077 is a prime.

It is a super-3 number, since 3×974779613³ (a number of 28 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (974779693) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 487389806 + 487389807.

It is an arithmetic number, because the mean of its divisors is an integer number (487389807).

Almost surely, 2^974779613 is an apocalyptic number.

It is an amenable number.

974779613 is a deficient number, since it is larger than the sum of its proper divisors (1).

974779613 is an equidigital number, since it uses as much as digits as its factorization.

974779613 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2000376, while the sum is 53.

The square root of 974779613 is about 31221.4607762033. The cubic root of 974779613 is about 991.5215229169.

The spelling of 974779613 in words is "nine hundred seventy-four million, seven hundred seventy-nine thousand, six hundred thirteen".