26971951 has 2 divisors, whose sum is σ = 26971952. Its totient is φ = 26971950.

The previous prime is 26971907. The next prime is 26971981. The reversal of 26971951 is 15917962.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 26971951 - 2¹⁵ = 26939183 is a prime.

It is a super-2 number, since 2×26971951² = 1454972281492802, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26971981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13485975 + 13485976.

It is an arithmetic number, because the mean of its divisors is an integer number (13485976).

Almost surely, 2^26971951 is an apocalyptic number.

26971951 is a deficient number, since it is larger than the sum of its proper divisors (1).

26971951 is an equidigital number, since it uses as much as digits as its factorization.

26971951 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34020, while the sum is 40.

The square root of 26971951 is about 5193.4527050894. The cubic root of 26971951 is about 299.8960788203.

The spelling of 26971951 in words is "twenty-six million, nine hundred seventy-one thousand, nine hundred fifty-one".