27401013 has 12 divisors (see below), whose sum is σ = 39626028. Its totient is φ = 18245760.

The previous prime is 27401009. The next prime is 27401041. The reversal of 27401013 is 31010472.

It can be written as a sum of positive squares in 2 ways, for example, as 13089924 + 14311089 = 3618^2 + 3783^2 .

It is not a de Polignac number, because 27401013 - 2² = 27401009 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27401813) 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, 11131 + ... + 13367.

It is an arithmetic number, because the mean of its divisors is an integer number (3302169).

Almost surely, 2^27401013 is an apocalyptic number.

It is an amenable number.

27401013 is a deficient number, since it is larger than the sum of its proper divisors (12225015).

27401013 is a wasteful number, since it uses less digits than its factorization.

27401013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3604 (or 3601 counting only the distinct ones).

The product of its (nonzero) digits is 168, while the sum is 18.

The square root of 27401013 is about 5234.5976922778. The cubic root of 27401013 is about 301.4779403511.

Adding to 27401013 its reverse (31010472), we get a palindrome (58411485).

The spelling of 27401013 in words is "twenty-seven million, four hundred one thousand, thirteen".