747900993 has 16 divisors (see below), whose sum is σ = 1150117760. Its totient is φ = 423449856.

The previous prime is 747900977. The next prime is 747901001. The reversal of 747900993 is 399009747.

It is not a de Polignac number, because 747900993 - 2⁴ = 747900977 is a prime.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (747900793) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 161080 + ... + 165657.

It is an arithmetic number, because the mean of its divisors is an integer number (71882360).

Almost surely, 2^747900993 is an apocalyptic number.

It is an amenable number.

747900993 is a deficient number, since it is larger than the sum of its proper divisors (402216767).

747900993 is a wasteful number, since it uses less digits than its factorization.

747900993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 326856.

The product of its (nonzero) digits is 428652, while the sum is 48.

The square root of 747900993 is about 27347.7785752335. The cubic root of 747900993 is about 907.7119158437.

The spelling of 747900993 in words is "seven hundred forty-seven million, nine hundred thousand, nine hundred ninety-three".