1625087 has 4 divisors (see below), whose sum is σ = 1628400. Its totient is φ = 1621776.

The previous prime is 1625059. The next prime is 1625123. The reversal of 1625087 is 7805261.

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 1625087 - 2¹⁴ = 1608703 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1625017) 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, 758 + ... + 1955.

It is an arithmetic number, because the mean of its divisors is an integer number (407100).

2^1625087 is an apocalyptic number.

1625087 is a deficient number, since it is larger than the sum of its proper divisors (3313).

1625087 is an equidigital number, since it uses as much as digits as its factorization.

1625087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3312.

The product of its (nonzero) digits is 3360, while the sum is 29.

The square root of 1625087 is about 1274.7890021490. The cubic root of 1625087 is about 117.5688324626.

The spelling of 1625087 in words is "one million, six hundred twenty-five thousand, eighty-seven".