621032423 has 32 divisors (see below), whose sum is σ = 762877440. Its totient is φ = 498216960.

The previous prime is 621032411. The next prime is 621032431. The reversal of 621032423 is 324230126.

It is not a de Polignac number, because 621032423 - 2¹⁸ = 620770279 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 (621032723) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 365111 + ... + 366807.

It is an arithmetic number, because the mean of its divisors is an integer number (23839920).

Almost surely, 2^621032423 is an apocalyptic number.

621032423 is a deficient number, since it is larger than the sum of its proper divisors (141845017).

621032423 is a wasteful number, since it uses less digits than its factorization.

621032423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1847.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 621032423 is about 24920.5221253488. The cubic root of 621032423 is about 853.1749417968.

Adding to 621032423 its reverse (324230126), we get a palindrome (945262549).

The spelling of 621032423 in words is "six hundred twenty-one million, thirty-two thousand, four hundred twenty-three".