1249679 has 6 divisors (see below), whose sum is σ = 1274760. Its totient is φ = 1225076.

The previous prime is 1249669. The next prime is 1249681. The reversal of 1249679 is 9769421.

It is not a de Polignac number, because 1249679 - 2¹⁶ = 1184143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1249669) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3302 + ... + 3660.

It is an arithmetic number, because the mean of its divisors is an integer number (212460).

2^1249679 is an apocalyptic number.

1249679 is a deficient number, since it is larger than the sum of its proper divisors (25081).

1249679 is an frugal number, since it uses more digits than its factorization.

1249679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477 (or 418 counting only the distinct ones).

The product of its digits is 27216, while the sum is 38.

The square root of 1249679 is about 1117.8904239683. The cubic root of 1249679 is about 107.7125127317.

The spelling of 1249679 in words is "one million, two hundred forty-nine thousand, six hundred seventy-nine".