1406247 has 8 divisors (see below), whose sum is σ = 1973760. Its totient is φ = 888120.

The previous prime is 1406231. The next prime is 1406267. The reversal of 1406247 is 7426041.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1406247 - 2⁴ = 1406231 is a prime.

1406247 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1406267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12279 + ... + 12392.

It is an arithmetic number, because the mean of its divisors is an integer number (246720).

2^1406247 is an apocalyptic number.

1406247 is a deficient number, since it is larger than the sum of its proper divisors (567513).

1406247 is a wasteful number, since it uses less digits than its factorization.

1406247 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24693.

The product of its (nonzero) digits is 1344, while the sum is 24.

The square root of 1406247 is about 1185.8528576514. The cubic root of 1406247 is about 112.0350389945.

It can be divided in two parts, 1406 and 247, that added together give a triangular number (1653 = T₅₇).

The spelling of 1406247 in words is "one million, four hundred six thousand, two hundred forty-seven".