958223961 has 12 divisors (see below), whose sum is σ = 1400778288. Its totient is φ = 631118904.

The previous prime is 958223939. The next prime is 958223969. The reversal of 958223961 is 169322859.

958223961 is a `hidden beast` number, since 9 + 582 + 2 + 3 + 9 + 61 = 666.

It is not a de Polignac number, because 958223961 - 2¹⁵ = 958191193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (958223969) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 640635 + ... + 642128.

It is an arithmetic number, because the mean of its divisors is an integer number (116731524).

Almost surely, 2^958223961 is an apocalyptic number.

It is an amenable number.

958223961 is a deficient number, since it is larger than the sum of its proper divisors (442554327).

958223961 is a wasteful number, since it uses less digits than its factorization.

958223961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1282852 (or 1282849 counting only the distinct ones).

The product of its digits is 233280, while the sum is 45.

The square root of 958223961 is about 30955.1927953938. The cubic root of 958223961 is about 985.8761085211.

The spelling of 958223961 in words is "nine hundred fifty-eight million, two hundred twenty-three thousand, nine hundred sixty-one".