80402643 has 12 divisors (see below), whose sum is σ = 118329120. Its totient is φ = 52590096.

The previous prime is 80402633. The next prime is 80402653. The reversal of 80402643 is 34620408.

It is an interprime number because it is at equal distance from previous prime (80402633) and next prime (80402653).

It is not a de Polignac number, because 80402643 - 2⁴ = 80402627 is a prime.

It is not an unprimeable number, because it can be changed into a prime (80402603) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 83803 + ... + 84756.

It is an arithmetic number, because the mean of its divisors is an integer number (9860760).

Almost surely, 2^80402643 is an apocalyptic number.

80402643 is a deficient number, since it is larger than the sum of its proper divisors (37926477).

80402643 is a wasteful number, since it uses less digits than its factorization.

80402643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168618 (or 168615 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

The square root of 80402643 is about 8966.7520875733. The cubic root of 80402643 is about 431.6086186477.

The spelling of 80402643 in words is "eighty million, four hundred two thousand, six hundred forty-three".