65670427 has 2 divisors, whose sum is σ = 65670428. Its totient is φ = 65670426.

The previous prime is 65670391. The next prime is 65670461. The reversal of 65670427 is 72407656.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 65670427 - 2⁷ = 65670299 is a prime.

It is not a weakly prime, because it can be changed into another prime (65671427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32835213 + 32835214.

It is an arithmetic number, because the mean of its divisors is an integer number (32835214).

Almost surely, 2^65670427 is an apocalyptic number.

65670427 is a deficient number, since it is larger than the sum of its proper divisors (1).

65670427 is an equidigital number, since it uses as much as digits as its factorization.

65670427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 70560, while the sum is 37.

The square root of 65670427 is about 8103.7292032743. The cubic root of 65670427 is about 403.4502107987.

The spelling of 65670427 in words is "sixty-five million, six hundred seventy thousand, four hundred twenty-seven".