27970101 has 6 divisors (see below), whose sum is σ = 40401270. Its totient is φ = 18646728.

The previous prime is 27970097. The next prime is 27970127. The reversal of 27970101 is 10107972.

It can be written as a sum of positive squares in only one way, i.e., 14243076 + 13727025 = 3774^2 + 3705^2 .

It is not a de Polignac number, because 27970101 - 2² = 27970097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (27970141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1553886 + ... + 1553903.

It is an arithmetic number, because the mean of its divisors is an integer number (6733545).

Almost surely, 2^27970101 is an apocalyptic number.

It is an amenable number.

27970101 is a deficient number, since it is larger than the sum of its proper divisors (12431169).

27970101 is a wasteful number, since it uses less digits than its factorization.

27970101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3107795 (or 3107792 counting only the distinct ones).

The product of its (nonzero) digits is 882, while the sum is 27.

The square root of 27970101 is about 5288.6766775820. The cubic root of 27970101 is about 303.5507742006.

The spelling of 27970101 in words is "twenty-seven million, nine hundred seventy thousand, one hundred one".