16961477 has 16 divisors (see below), whose sum is σ = 18884208. Its totient is φ = 15137280.

The previous prime is 16961473. The next prime is 16961489. The reversal of 16961477 is 77416961.

It can be written as a sum of positive squares in 8 ways, for example, as 591361 + 16370116 = 769^2 + 4046^2 .

It is not a de Polignac number, because 16961477 - 2² = 16961473 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 (16961473) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57743 + ... + 58035.

It is an arithmetic number, because the mean of its divisors is an integer number (1180263).

Almost surely, 2^16961477 is an apocalyptic number.

It is an amenable number.

16961477 is a deficient number, since it is larger than the sum of its proper divisors (1922731).

16961477 is a wasteful number, since it uses less digits than its factorization.

16961477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440.

The product of its digits is 63504, while the sum is 41.

The square root of 16961477 is about 4118.4313761431. The cubic root of 16961477 is about 256.9337896631.

The spelling of 16961477 in words is "sixteen million, nine hundred sixty-one thousand, four hundred seventy-seven".