2636001 has 12 divisors (see below), whose sum is σ = 3831828. Its totient is φ = 1746144.

The previous prime is 2635987. The next prime is 2636009. The reversal of 2636001 is 1006362.

It is a happy number.

2636001 is a `hidden beast` number, since 2 + 63 + 600 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1782225 + 853776 = 1335^2 + 924^2 .

It is not a de Polignac number, because 2636001 - 2⁹ = 2635489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2636009) 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, 711 + ... + 2403.

It is an arithmetic number, because the mean of its divisors is an integer number (319319).

2^2636001 is an apocalyptic number.

It is an amenable number.

2636001 is a deficient number, since it is larger than the sum of its proper divisors (1195827).

2636001 is a wasteful number, since it uses less digits than its factorization.

2636001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1872 (or 1869 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 2636001 is about 1623.5766073703. The cubic root of 2636001 is about 138.1386445302.

The spelling of 2636001 in words is "two million, six hundred thirty-six thousand, one".