623288541 has 4 divisors (see below), whose sum is σ = 831051392. Its totient is φ = 415525692.

The previous prime is 623288531. The next prime is 623288543. The reversal of 623288541 is 145882326.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 623288541 - 2¹³ = 623280349 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 623288541.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (623288543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 103881421 + ... + 103881426.

It is an arithmetic number, because the mean of its divisors is an integer number (207762848).

Almost surely, 2^623288541 is an apocalyptic number.

It is an amenable number.

623288541 is a deficient number, since it is larger than the sum of its proper divisors (207762851).

623288541 is a wasteful number, since it uses less digits than its factorization.

623288541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 207762850.

The product of its digits is 92160, while the sum is 39.

The square root of 623288541 is about 24965.7473551264. The cubic root of 623288541 is about 854.2068455812.

The spelling of 623288541 in words is "six hundred twenty-three million, two hundred eighty-eight thousand, five hundred forty-one".