1264377 has 4 divisors (see below), whose sum is σ = 1685840. Its totient is φ = 842916.

The previous prime is 1264363. The next prime is 1264387. The reversal of 1264377 is 7734621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 7734621 = 3 ⋅2578207.

It is not a de Polignac number, because 1264377 - 2²⁰ = 215801 is a prime.

It is a D-number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1264337) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210727 + ... + 210732.

It is an arithmetic number, because the mean of its divisors is an integer number (421460).

2^1264377 is an apocalyptic number.

It is an amenable number.

1264377 is a deficient number, since it is larger than the sum of its proper divisors (421463).

1264377 is an equidigital number, since it uses as much as digits as its factorization.

1264377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 421462.

The product of its digits is 7056, while the sum is 30.

The square root of 1264377 is about 1124.4451965303. The cubic root of 1264377 is about 108.1331519576.

Adding to 1264377 its reverse (7734621), we get a palindrome (8998998).

It can be divided in two parts, 12643 and 77, that added together give a triangular number (12720 = T₁₅₉).

The spelling of 1264377 in words is "one million, two hundred sixty-four thousand, three hundred seventy-seven".