7431398623 has 8 divisors (see below), whose sum is σ = 8209601280. Its totient is φ = 6670299480.

The previous prime is 7431398591. The next prime is 7431398633. The reversal of 7431398623 is 3268931347.

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

It is a cyclic number.

It is not a de Polignac number, because 7431398623 - 2⁵ = 7431398591 is a prime.

It is a super-2 number, since 2×7431398623² (a number of 21 digits) 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 (7431398633) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4274965 + ... + 4276702.

It is an arithmetic number, because the mean of its divisors is an integer number (1026200160).

Almost surely, 2^7431398623 is an apocalyptic number.

7431398623 is a deficient number, since it is larger than the sum of its proper divisors (778202657).

7431398623 is a wasteful number, since it uses less digits than its factorization.

7431398623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8551757.

The product of its digits is 653184, while the sum is 46.

The square root of 7431398623 is about 86205.5602789054. The cubic root of 7431398623 is about 1951.4474130345.

The spelling of 7431398623 in words is "seven billion, four hundred thirty-one million, three hundred ninety-eight thousand, six hundred twenty-three".