747148917 has 4 divisors (see below), whose sum is σ = 996198560. Its totient is φ = 498099276.

The previous prime is 747148903. The next prime is 747148943. The reversal of 747148917 is 719841747.

It is a happy number.

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 not a de Polignac number, because 747148917 - 2¹⁹ = 746624629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (747148957) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124524817 + ... + 124524822.

It is an arithmetic number, because the mean of its divisors is an integer number (249049640).

Almost surely, 2^747148917 is an apocalyptic number.

It is an amenable number.

747148917 is a deficient number, since it is larger than the sum of its proper divisors (249049643).

747148917 is a wasteful number, since it uses less digits than its factorization.

747148917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 249049642.

The product of its digits is 395136, while the sum is 48.

The square root of 747148917 is about 27334.0248957229. The cubic root of 747148917 is about 907.4075541222.

The spelling of 747148917 in words is "seven hundred forty-seven million, one hundred forty-eight thousand, nine hundred seventeen".