16949247 has 12 divisors (see below), whose sum is σ = 26288856. Its totient is φ = 9685200.

The previous prime is 16949239. The next prime is 16949269. The reversal of 16949247 is 74294961.

It is not a de Polignac number, because 16949247 - 2³ = 16949239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 16949199 and 16949208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16949227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 57504 + ... + 57797.

It is an arithmetic number, because the mean of its divisors is an integer number (2190738).

Almost surely, 2^16949247 is an apocalyptic number.

16949247 is a deficient number, since it is larger than the sum of its proper divisors (9339609).

16949247 is a wasteful number, since it uses less digits than its factorization.

16949247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115318 (or 115311 counting only the distinct ones).

The product of its digits is 108864, while the sum is 42.

The square root of 16949247 is about 4116.9463197861. The cubic root of 16949247 is about 256.8720211470.

The spelling of 16949247 in words is "sixteen million, nine hundred forty-nine thousand, two hundred forty-seven".