9501961 has 4 divisors (see below), whose sum is σ = 10859392. Its totient is φ = 8144532.

The previous prime is 9501959. The next prime is 9501971. The reversal of 9501961 is 1691059.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1691059 = 1051 ⋅1609.

It is a cyclic number.

It is not a de Polignac number, because 9501961 - 2¹ = 9501959 is a prime.

It is a Duffinian number.

9501961 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (9501971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 678705 + ... + 678718.

It is an arithmetic number, because the mean of its divisors is an integer number (2714848).

Almost surely, 2^9501961 is an apocalyptic number.

It is an amenable number.

9501961 is a deficient number, since it is larger than the sum of its proper divisors (1357431).

9501961 is a wasteful number, since it uses less digits than its factorization.

9501961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1357430.

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

The square root of 9501961 is about 3082.5251012765. The cubic root of 9501961 is about 211.8057509295.

The spelling of 9501961 in words is "nine million, five hundred one thousand, nine hundred sixty-one".