20693049 has 16 divisors (see below), whose sum is σ = 29894592. Its totient is φ = 12656448.

The previous prime is 20693047. The next prime is 20693053. The reversal of 20693049 is 94039602.

It is not a de Polignac number, because 20693049 - 2¹ = 20693047 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20693047) 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, 5214 + ... + 8280.

It is an arithmetic number, because the mean of its divisors is an integer number (1868412).

Almost surely, 2^20693049 is an apocalyptic number.

It is an amenable number.

20693049 is a deficient number, since it is larger than the sum of its proper divisors (9201543).

20693049 is a wasteful number, since it uses less digits than its factorization.

20693049 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3256.

The product of its (nonzero) digits is 11664, while the sum is 33.

The square root of 20693049 is about 4548.9613100135. The cubic root of 20693049 is about 274.5416010552.

The spelling of 20693049 in words is "twenty million, six hundred ninety-three thousand, forty-nine".