9961955 has 8 divisors (see below), whose sum is σ = 12042432. Its totient is φ = 7910848.

The previous prime is 9961951. The next prime is 9961957. The reversal of 9961955 is 5591699.

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 9961955 - 2² = 9961951 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9961951) 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, 6587 + ... + 7956.

It is an arithmetic number, because the mean of its divisors is an integer number (1505304).

Almost surely, 2^9961955 is an apocalyptic number.

9961955 is a deficient number, since it is larger than the sum of its proper divisors (2080477).

9961955 is a wasteful number, since it uses less digits than its factorization.

9961955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14685.

The product of its digits is 109350, while the sum is 44.

The square root of 9961955 is about 3156.2564851419. The cubic root of 9961955 is about 215.1699035568.

The spelling of 9961955 in words is "nine million, nine hundred sixty-one thousand, nine hundred fifty-five".