1264667 has 2 divisors, whose sum is σ = 1264668. Its totient is φ = 1264666.

The previous prime is 1264663. The next prime is 1264687. The reversal of 1264667 is 7664621.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1264667 - 2² = 1264663 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1264663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 632333 + 632334.

It is an arithmetic number, because the mean of its divisors is an integer number (632334).

2^1264667 is an apocalyptic number.

1264667 is a deficient number, since it is larger than the sum of its proper divisors (1).

1264667 is an equidigital number, since it uses as much as digits as its factorization.

1264667 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12096, while the sum is 32.

The square root of 1264667 is about 1124.5741416198. The cubic root of 1264667 is about 108.1414185365.

The spelling of 1264667 in words is "one million, two hundred sixty-four thousand, six hundred sixty-seven".