747889149 has 32 divisors (see below), whose sum is σ = 1184440320. Its totient is φ = 410703552.

The previous prime is 747889141. The next prime is 747889169. The reversal of 747889149 is 941988747.

It is not a de Polignac number, because 747889149 - 2³ = 747889141 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747889141) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 133054 + ... + 138560.

It is an arithmetic number, because the mean of its divisors is an integer number (37013760).

Almost surely, 2^747889149 is an apocalyptic number.

It is an amenable number.

747889149 is a deficient number, since it is larger than the sum of its proper divisors (436551171).

747889149 is a wasteful number, since it uses less digits than its factorization.

747889149 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5769.

The product of its digits is 4064256, while the sum is 57.

The square root of 747889149 is about 27347.5620302798. The cubic root of 747889149 is about 907.7071242127.

The spelling of 747889149 in words is "seven hundred forty-seven million, eight hundred eighty-nine thousand, one hundred forty-nine".