11902961 has 4 divisors (see below), whose sum is σ = 13603392. Its totient is φ = 10202532.

The previous prime is 11902931. The next prime is 11902973. The reversal of 11902961 is 16920911.

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: 16920911 = 7 ⋅2417273.

It is a cyclic number.

It is not a de Polignac number, because 11902961 - 2¹⁰ = 11901937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11902921) 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, 850205 + ... + 850218.

It is an arithmetic number, because the mean of its divisors is an integer number (3400848).

Almost surely, 2^11902961 is an apocalyptic number.

It is an amenable number.

11902961 is a deficient number, since it is larger than the sum of its proper divisors (1700431).

11902961 is an equidigital number, since it uses as much as digits as its factorization.

11902961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1700430.

The product of its (nonzero) digits is 972, while the sum is 29.

The square root of 11902961 is about 3450.0668109473. The cubic root of 11902961 is about 228.3240557203.

The spelling of 11902961 in words is "eleven million, nine hundred two thousand, nine hundred sixty-one".