74289123 has 8 divisors (see below), whose sum is σ = 110058000. Its totient is φ = 49526064.

The previous prime is 74289109. The next prime is 74289143. The reversal of 74289123 is 32198247.

It is not a de Polignac number, because 74289123 - 2¹² = 74285027 is a prime.

It is a super-2 number, since 2×74289123² = 11037747592218258, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (74289143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1375698 + ... + 1375751.

It is an arithmetic number, because the mean of its divisors is an integer number (13757250).

Almost surely, 2^74289123 is an apocalyptic number.

74289123 is a deficient number, since it is larger than the sum of its proper divisors (35768877).

74289123 is a wasteful number, since it uses less digits than its factorization.

74289123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2751458 (or 2751452 counting only the distinct ones).

The product of its digits is 24192, while the sum is 36.

The square root of 74289123 is about 8619.1138175569. The cubic root of 74289123 is about 420.3797076363.

The spelling of 74289123 in words is "seventy-four million, two hundred eighty-nine thousand, one hundred twenty-three".