747225877 has 4 divisors (see below), whose sum is σ = 747312480. Its totient is φ = 747139276.

The previous prime is 747225859. The next prime is 747225889. The reversal of 747225877 is 778522747.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-747225877 is a prime.

It is a super-2 number, since 2×747225877² = 1116693022516838258, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 747225877.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747225077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28723 + ... + 48160.

It is an arithmetic number, because the mean of its divisors is an integer number (186828120).

Almost surely, 2^747225877 is an apocalyptic number.

It is an amenable number.

747225877 is a deficient number, since it is larger than the sum of its proper divisors (86603).

747225877 is an equidigital number, since it uses as much as digits as its factorization.

747225877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86602.

The product of its digits is 1536640, while the sum is 49.

The square root of 747225877 is about 27335.4326287330. The cubic root of 747225877 is about 907.4387088609.

The spelling of 747225877 in words is "seven hundred forty-seven million, two hundred twenty-five thousand, eight hundred seventy-seven".