80399901 has 4 divisors (see below), whose sum is σ = 107199872. Its totient is φ = 53599932.

The previous prime is 80399899. The next prime is 80399909. The reversal of 80399901 is 10999308.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 80399901 - 2¹ = 80399899 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 80399901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80399909) 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, 13399981 + ... + 13399986.

It is an arithmetic number, because the mean of its divisors is an integer number (26799968).

Almost surely, 2^80399901 is an apocalyptic number.

It is an amenable number.

80399901 is a deficient number, since it is larger than the sum of its proper divisors (26799971).

80399901 is a wasteful number, since it uses less digits than its factorization.

80399901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26799970.

The product of its (nonzero) digits is 17496, while the sum is 39.

The square root of 80399901 is about 8966.5991880980. The cubic root of 80399901 is about 431.6037121577.

The spelling of 80399901 in words is "eighty million, three hundred ninety-nine thousand, nine hundred one".