74898617 has 6 divisors (see below), whose sum is σ = 79342218. Its totient is φ = 70459232.

The previous prime is 74898601. The next prime is 74898623. The reversal of 74898617 is 71689847.

It can be written as a sum of positive squares in only one way, i.e., 70492816 + 4405801 = 8396^2 + 2099^2 .

It is not a de Polignac number, because 74898617 - 2⁴ = 74898601 is a prime.

It is a super-3 number, since 3×74898617³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (74898017) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34634 + ... + 36732.

It is an arithmetic number, because the mean of its divisors is an integer number (13223703).

Almost surely, 2^74898617 is an apocalyptic number.

It is an amenable number.

74898617 is a deficient number, since it is larger than the sum of its proper divisors (4443601).

74898617 is an frugal number, since it uses more digits than its factorization.

74898617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4215 (or 2116 counting only the distinct ones).

The product of its digits is 677376, while the sum is 50.

The square root of 74898617 is about 8654.3987081715. The cubic root of 74898617 is about 421.5262253336.

The spelling of 74898617 in words is "seventy-four million, eight hundred ninety-eight thousand, six hundred seventeen".