390625001 has 4 divisors (see below), whose sum is σ = 420673092. Its totient is φ = 360576912.

The previous prime is 390624959. The next prime is 390625003. The reversal of 390625001 is 100526093.

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

It can be written as a sum of positive squares in 2 ways, for example, as 86471401 + 304153600 = 9299^2 + 17440^2 .

It is a cyclic number.

It is not a de Polignac number, because 390625001 - 2⁶ = 390624937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (390625003) 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, 15024026 + ... + 15024051.

It is an arithmetic number, because the mean of its divisors is an integer number (105168273).

Almost surely, 2^390625001 is an apocalyptic number.

It is an amenable number.

390625001 is a deficient number, since it is larger than the sum of its proper divisors (30048091).

390625001 is a wasteful number, since it uses less digits than its factorization.

390625001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30048090.

The product of its (nonzero) digits is 1620, while the sum is 26.

The square root of 390625001 is about 19764.2354013506. The cubic root of 390625001 is about 731.0044351770.

The spelling of 390625001 in words is "three hundred ninety million, six hundred twenty-five thousand, one".