406623673 has 8 divisors (see below), whose sum is σ = 417961088. Its totient is φ = 395304624.

The previous prime is 406623661. The next prime is 406623689. The reversal of 406623673 is 376326604.

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 406623673 - 2⁵ = 406623641 is a prime.

It is a super-2 number, since 2×406623673² = 330685622888021858, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (406623643) 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, 48790 + ... + 56512.

It is an arithmetic number, because the mean of its divisors is an integer number (52245136).

Almost surely, 2^406623673 is an apocalyptic number.

It is an amenable number.

406623673 is a deficient number, since it is larger than the sum of its proper divisors (11337415).

406623673 is a wasteful number, since it uses less digits than its factorization.

406623673 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9183.

The product of its (nonzero) digits is 108864, while the sum is 37.

The square root of 406623673 is about 20164.9119264132. The cubic root of 406623673 is about 740.8510254209.

The spelling of 406623673 in words is "four hundred six million, six hundred twenty-three thousand, six hundred seventy-three".