16293901 has 4 divisors (see below), whose sum is σ = 17547292. Its totient is φ = 15040512.

The previous prime is 16293899. The next prime is 16293917. The reversal of 16293901 is 10939261.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10048900 + 6245001 = 3170^2 + 2499^2 .

It is a cyclic number.

It is not a de Polignac number, because 16293901 - 2¹ = 16293899 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 (16293961) 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, 626676 + ... + 626701.

It is an arithmetic number, because the mean of its divisors is an integer number (4386823).

Almost surely, 2^16293901 is an apocalyptic number.

It is an amenable number.

16293901 is a deficient number, since it is larger than the sum of its proper divisors (1253391).

16293901 is a wasteful number, since it uses less digits than its factorization.

16293901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253390.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 16293901 is about 4036.5704502709. The cubic root of 16293901 is about 253.5177418086.

The spelling of 16293901 in words is "sixteen million, two hundred ninety-three thousand, nine hundred one".