747285431 has 4 divisors (see below), whose sum is σ = 749427000. Its totient is φ = 745143864.

The previous prime is 747285403. The next prime is 747285449. The reversal of 747285431 is 134582747.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 747285431 - 2⁶ = 747285367 is a prime.

It is a super-2 number, since 2×747285431² = 1116871030769711522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747285131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1070261 + ... + 1070958.

It is an arithmetic number, because the mean of its divisors is an integer number (187356750).

Almost surely, 2^747285431 is an apocalyptic number.

747285431 is a deficient number, since it is larger than the sum of its proper divisors (2141569).

747285431 is a wasteful number, since it uses less digits than its factorization.

747285431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2141568.

The product of its digits is 188160, while the sum is 41.

The square root of 747285431 is about 27336.5219258047. The cubic root of 747285431 is about 907.4628158816.

The spelling of 747285431 in words is "seven hundred forty-seven million, two hundred eighty-five thousand, four hundred thirty-one".