623670551 has 8 divisors (see below), whose sum is σ = 754693920. Its totient is φ = 503129088.

The previous prime is 623670539. The next prime is 623670559. The reversal of 623670551 is 155076326.

623670551 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 623670551 - 2¹⁴ = 623654167 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623670559) 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, 2620346 + ... + 2620583.

It is an arithmetic number, because the mean of its divisors is an integer number (94336740).

Almost surely, 2^623670551 is an apocalyptic number.

623670551 is a deficient number, since it is larger than the sum of its proper divisors (131023369).

623670551 is a wasteful number, since it uses less digits than its factorization.

623670551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5240953.

The product of its (nonzero) digits is 37800, while the sum is 35.

The square root of 623670551 is about 24973.3968654647. The cubic root of 623670551 is about 854.3813227790.

The spelling of 623670551 in words is "six hundred twenty-three million, six hundred seventy thousand, five hundred fifty-one".