427164007 has 2 divisors, whose sum is σ = 427164008. Its totient is φ = 427164006.

The previous prime is 427163993. The next prime is 427164011. The reversal of 427164007 is 700461724.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-427164007 is a prime.

It is equal to p_22705348 and since 427164007 and 22705348 have the same sum of digits, it is a Honaker prime.

It is a self number, because there is not a number n which added to its sum of digits gives 427164007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427164037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213582003 + 213582004.

It is an arithmetic number, because the mean of its divisors is an integer number (213582004).

Almost surely, 2^427164007 is an apocalyptic number.

427164007 is a deficient number, since it is larger than the sum of its proper divisors (1).

427164007 is an equidigital number, since it uses as much as digits as its factorization.

427164007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9408, while the sum is 31.

The square root of 427164007 is about 20667.9463662939. The cubic root of 427164007 is about 753.1212190073.

The spelling of 427164007 in words is "four hundred twenty-seven million, one hundred sixty-four thousand, seven".