18001077 has 8 divisors (see below), whose sum is σ = 24408480. Its totient is φ = 11797200.

The previous prime is 18001073. The next prime is 18001099. The reversal of 18001077 is 77010081.

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

It is not a de Polignac number, because 18001077 - 2² = 18001073 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (18001073) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50674 + ... + 51027.

It is an arithmetic number, because the mean of its divisors is an integer number (3051060).

Almost surely, 2^18001077 is an apocalyptic number.

It is an amenable number.

18001077 is a deficient number, since it is larger than the sum of its proper divisors (6407403).

18001077 is a wasteful number, since it uses less digits than its factorization.

18001077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101763.

The product of its (nonzero) digits is 392, while the sum is 24.

The square root of 18001077 is about 4242.7676108880. The cubic root of 18001077 is about 262.0793662398.

The spelling of 18001077 in words is "eighteen million, one thousand, seventy-seven".