950891421 has 4 divisors (see below), whose sum is σ = 1267855232. Its totient is φ = 633927612.

The previous prime is 950891351. The next prime is 950891429. The reversal of 950891421 is 124198059.

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 950891421 - 2²⁵ = 917336989 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 950891421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (950891429) 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, 158481901 + ... + 158481906.

It is an arithmetic number, because the mean of its divisors is an integer number (316963808).

Almost surely, 2^950891421 is an apocalyptic number.

It is an amenable number.

950891421 is a deficient number, since it is larger than the sum of its proper divisors (316963811).

950891421 is a wasteful number, since it uses less digits than its factorization.

950891421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316963810.

The product of its (nonzero) digits is 25920, while the sum is 39.

The square root of 950891421 is about 30836.5273823107. The cubic root of 950891421 is about 983.3549532991.

The spelling of 950891421 in words is "nine hundred fifty million, eight hundred ninety-one thousand, four hundred twenty-one".