1247492 has 12 divisors (see below), whose sum is σ = 2242380. Its totient is φ = 606816.

The previous prime is 1247479. The next prime is 1247501. The reversal of 1247492 is 2947421.

It can be written as a sum of positive squares in 2 ways, for example, as 678976 + 568516 = 824^2 + 754^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4067 + ... + 4362.

It is an arithmetic number, because the mean of its divisors is an integer number (186865).

2^1247492 is an apocalyptic number.

It is an amenable number.

1247492 is a deficient number, since it is larger than the sum of its proper divisors (994888).

1247492 is a wasteful number, since it uses less digits than its factorization.

1247492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8470 (or 8468 counting only the distinct ones).

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

The square root of 1247492 is about 1116.9118138868. The cubic root of 1247492 is about 107.6496419686.

The spelling of 1247492 in words is "one million, two hundred forty-seven thousand, four hundred ninety-two".