623361216 has 28 divisors (see below), whose sum is σ = 1649310392. Its totient is φ = 207787008.

The previous prime is 623361173. The next prime is 623361217. The reversal of 623361216 is 612163326.

It is a super-2 number, since 2×623361216² = 777158411225997312, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (623361217) 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, 1623145 + ... + 1623528.

Almost surely, 2^623361216 is an apocalyptic number.

It is an amenable number.

623361216 is an abundant number, since it is smaller than the sum of its proper divisors (1025949176).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

623361216 is a wasteful number, since it uses less digits than its factorization.

623361216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3246688 (or 3246678 counting only the distinct ones).

The product of its digits is 7776, while the sum is 30.

The square root of 623361216 is about 24967.2028068825. The cubic root of 623361216 is about 854.2400442609.

The spelling of 623361216 in words is "six hundred twenty-three million, three hundred sixty-one thousand, two hundred sixteen".