747403643 has 8 divisors (see below), whose sum is σ = 859833600. Its totient is φ = 636388200.

The previous prime is 747403639. The next prime is 747403687. The reversal of 747403643 is 346304747.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 747403643 - 2² = 747403639 is a prime.

It is a super-2 number, since 2×747403643² = 1117224411139342898, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 747403597 and 747403606.

It is not an unprimeable number, because it can be changed into a prime (747403243) 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 7 ways as a sum of consecutive naturals, for example, 352493 + ... + 354606.

It is an arithmetic number, because the mean of its divisors is an integer number (107479200).

Almost surely, 2^747403643 is an apocalyptic number.

747403643 is a deficient number, since it is larger than the sum of its proper divisors (112429957).

747403643 is a wasteful number, since it uses less digits than its factorization.

747403643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707257.

The product of its (nonzero) digits is 169344, while the sum is 38.

The square root of 747403643 is about 27338.6840027094. The cubic root of 747403643 is about 907.5106634349.

The spelling of 747403643 in words is "seven hundred forty-seven million, four hundred three thousand, six hundred forty-three".