80628783 has 4 divisors (see below), whose sum is σ = 107505048. Its totient is φ = 53752520.

The previous prime is 80628767. The next prime is 80628791. The reversal of 80628783 is 38782608.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80628783 - 2⁴ = 80628767 is a prime.

It is a super-2 number, since 2×80628783² = 13002001296122178, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80628083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13438128 + ... + 13438133.

It is an arithmetic number, because the mean of its divisors is an integer number (26876262).

Almost surely, 2^80628783 is an apocalyptic number.

80628783 is a deficient number, since it is larger than the sum of its proper divisors (26876265).

80628783 is a wasteful number, since it uses less digits than its factorization.

80628783 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26876264.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 80628783 is about 8979.3531504224. The cubic root of 80628783 is about 432.0128864897.

The spelling of 80628783 in words is "eighty million, six hundred twenty-eight thousand, seven hundred eighty-three".