531349623 has 24 divisors (see below), whose sum is σ = 877913088. Its totient is φ = 303363792.

The previous prime is 531349613. The next prime is 531349633. The reversal of 531349623 is 326943135.

It is a happy number.

531349623 is a `hidden beast` number, since 531 + 34 + 96 + 2 + 3 = 666.

It is an interprime number because it is at equal distance from previous prime (531349613) and next prime (531349633).

It is not a de Polignac number, because 531349623 - 2⁵ = 531349591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (531349613) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 86686 + ... + 92612.

It is an arithmetic number, because the mean of its divisors is an integer number (36579712).

Almost surely, 2^531349623 is an apocalyptic number.

531349623 is a deficient number, since it is larger than the sum of its proper divisors (346563465).

531349623 is a wasteful number, since it uses less digits than its factorization.

531349623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7363 (or 7360 counting only the distinct ones).

The product of its digits is 58320, while the sum is 36.

The square root of 531349623 is about 23051.0221682250. The cubic root of 531349623 is about 809.9535730134.

The spelling of 531349623 in words is "five hundred thirty-one million, three hundred forty-nine thousand, six hundred twenty-three".