80623905 has 8 divisors (see below), whose sum is σ = 128998272. Its totient is φ = 42999408.

The previous prime is 80623891. The next prime is 80623919. The reversal of 80623905 is 50932608.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (80623891) and next prime (80623919).

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

It is not a de Polignac number, because 80623905 - 2⁴ = 80623889 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2687449 + ... + 2687478.

It is an arithmetic number, because the mean of its divisors is an integer number (16124784).

Almost surely, 2^80623905 is an apocalyptic number.

It is an amenable number.

80623905 is a deficient number, since it is larger than the sum of its proper divisors (48374367).

80623905 is a wasteful number, since it uses less digits than its factorization.

80623905 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5374935.

The product of its (nonzero) digits is 12960, while the sum is 33.

The square root of 80623905 is about 8979.0815231849. The cubic root of 80623905 is about 432.0041741280.

The spelling of 80623905 in words is "eighty million, six hundred twenty-three thousand, nine hundred five".