27723725 has 12 divisors (see below), whose sum is σ = 34863840. Its totient is φ = 21865200.

The previous prime is 27723677. The next prime is 27723727. The reversal of 27723725 is 52732772.

It is a happy number.

It is not a de Polignac number, because 27723725 - 2¹⁰ = 27722701 is a prime.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27723727) 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, 6035 + ... + 9584.

It is an arithmetic number, because the mean of its divisors is an integer number (2905320).

Almost surely, 2^27723725 is an apocalyptic number.

27723725 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

27723725 is a deficient number, since it is larger than the sum of its proper divisors (7140115).

27723725 is a wasteful number, since it uses less digits than its factorization.

27723725 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15700 (or 15695 counting only the distinct ones).

The product of its digits is 41160, while the sum is 35.

The square root of 27723725 is about 5265.3323731746. The cubic root of 27723725 is about 302.6568637515.

The spelling of 27723725 in words is "twenty-seven million, seven hundred twenty-three thousand, seven hundred twenty-five".