80643950 has 24 divisors (see below), whose sum is σ = 150880968. Its totient is φ = 32067680.

The previous prime is 80643949. The next prime is 80644019. The reversal of 80643950 is 5934608.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 80643950.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3989 + ... + 13311.

It is an arithmetic number, because the mean of its divisors is an integer number (6286707).

Almost surely, 2^80643950 is an apocalyptic number.

80643950 is a deficient number, since it is larger than the sum of its proper divisors (70237018).

80643950 is a wasteful number, since it uses less digits than its factorization.

80643950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9508 (or 9503 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 35.

The square root of 80643950 is about 8980.1976592946. The cubic root of 80643950 is about 432.0399732959.

The spelling of 80643950 in words is "eighty million, six hundred forty-three thousand, nine hundred fifty".