26670487 has 2 divisors, whose sum is σ = 26670488. Its totient is φ = 26670486.

The previous prime is 26670461. The next prime is 26670491. The reversal of 26670487 is 78407662.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-26670487 is a prime.

It is a super-2 number, since 2×26670487² = 1422629753634338, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (26670407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13335243 + 13335244.

It is an arithmetic number, because the mean of its divisors is an integer number (13335244).

Almost surely, 2^26670487 is an apocalyptic number.

26670487 is a deficient number, since it is larger than the sum of its proper divisors (1).

26670487 is an equidigital number, since it uses as much as digits as its factorization.

26670487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896, while the sum is 40.

The square root of 26670487 is about 5164.3476838803. The cubic root of 26670487 is about 298.7745828058.

The spelling of 26670487 in words is "twenty-six million, six hundred seventy thousand, four hundred eighty-seven".