1307864 has 8 divisors (see below), whose sum is σ = 2452260. Its totient is φ = 653928.

The previous prime is 1307863. The next prime is 1307893. The reversal of 1307864 is 4687031.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1307863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 81734 + ... + 81749.

2^1307864 is an apocalyptic number.

It is an amenable number.

1307864 is a deficient number, since it is larger than the sum of its proper divisors (1144396).

1307864 is a wasteful number, since it uses less digits than its factorization.

1307864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163489 (or 163485 counting only the distinct ones).

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 1307864 is about 1143.6188176136. The cubic root of 1307864 is about 109.3589156212.

The spelling of 1307864 in words is "one million, three hundred seven thousand, eight hundred sixty-four".