961951 has 8 divisors (see below), whose sum is σ = 1021680. Its totient is φ = 903168.

The previous prime is 961943. The next prime is 961957. The reversal of 961951 is 159169.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 961951 - 2³ = 961943 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 (961957) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3615 + ... + 3871.

It is an arithmetic number, because the mean of its divisors is an integer number (127710).

2⁹⁶¹⁹⁵¹ is an apocalyptic number.

961951 is a deficient number, since it is larger than the sum of its proper divisors (59729).

961951 is a wasteful number, since it uses less digits than its factorization.

961951 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473.

The product of its digits is 2430, while the sum is 31.

The square root of 961951 is about 980.7910072997. The cubic root of 961951 is about 98.7152652499.

The spelling of 961951 in words is "nine hundred sixty-one thousand, nine hundred fifty-one".