17950961 has 4 divisors (see below), whose sum is σ = 20515392. Its totient is φ = 15386532.

The previous prime is 17950949. The next prime is 17950967. The reversal of 17950961 is 16905971.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 17950961 - 2¹⁴ = 17934577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (17950967) 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, 1282205 + ... + 1282218.

It is an arithmetic number, because the mean of its divisors is an integer number (5128848).

Almost surely, 2^17950961 is an apocalyptic number.

It is an amenable number.

17950961 is a deficient number, since it is larger than the sum of its proper divisors (2564431).

17950961 is an equidigital number, since it uses as much as digits as its factorization.

17950961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2564430.

The product of its (nonzero) digits is 17010, while the sum is 38.

The square root of 17950961 is about 4236.8574439082. The cubic root of 17950961 is about 261.8359256696.

The spelling of 17950961 in words is "seventeen million, nine hundred fifty thousand, nine hundred sixty-one".