1623662417 has 8 divisors (see below), whose sum is σ = 1804965120. Its totient is φ = 1450417680.

The previous prime is 1623662407. The next prime is 1623662429. The reversal of 1623662417 is 7142663261.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1623662417 - 2¹⁴ = 1623646033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1623662407) 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, 2014067 + ... + 2014872.

It is an arithmetic number, because the mean of its divisors is an integer number (225620640).

Almost surely, 2^1623662417 is an apocalyptic number.

It is an amenable number.

1623662417 is a deficient number, since it is larger than the sum of its proper divisors (181302703).

1623662417 is a wasteful number, since it uses less digits than its factorization.

1623662417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4028983.

The product of its digits is 72576, while the sum is 38.

The square root of 1623662417 is about 40294.6946507850. The cubic root of 1623662417 is about 1175.3446804099.

The spelling of 1623662417 in words is "one billion, six hundred twenty-three million, six hundred sixty-two thousand, four hundred seventeen".