623412547 has 8 divisors (see below), whose sum is σ = 631148544. Its totient is φ = 615709128.

The previous prime is 623412541. The next prime is 623412557. The reversal of 623412547 is 745214326.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-623412547 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (623412541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31548 + ... + 47350.

It is an arithmetic number, because the mean of its divisors is an integer number (78893568).

Almost surely, 2^623412547 is an apocalyptic number.

623412547 is a deficient number, since it is larger than the sum of its proper divisors (7735997).

623412547 is a wasteful number, since it uses less digits than its factorization.

623412547 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16289.

The product of its digits is 40320, while the sum is 34.

The square root of 623412547 is about 24968.2307543006. The cubic root of 623412547 is about 854.2634912293.

It can be divided in two parts, 6234 and 12547, that added together give a palindrome (18781).

The spelling of 623412547 in words is "six hundred twenty-three million, four hundred twelve thousand, five hundred forty-seven".