940591 has 4 divisors (see below), whose sum is σ = 958392. Its totient is φ = 922792.

The previous prime is 940573. The next prime is 940607. The reversal of 940591 is 195049.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-940591 is a prime.

It is a super-2 number, since 2×940591² = 1769422858562, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (940501) 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, 8821 + ... + 8926.

It is an arithmetic number, because the mean of its divisors is an integer number (239598).

2⁹⁴⁰⁵⁹¹ is an apocalyptic number.

940591 is a deficient number, since it is larger than the sum of its proper divisors (17801).

940591 is a wasteful number, since it uses less digits than its factorization.

940591 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17800.

The product of its (nonzero) digits is 1620, while the sum is 28.

The square root of 940591 is about 969.8407085702. The cubic root of 940591 is about 97.9791361943.

The spelling of 940591 in words is "nine hundred forty thousand, five hundred ninety-one".