1400791 has 8 divisors (see below), whose sum is σ = 1620864. Its totient is φ = 1185720.

The previous prime is 1400753. The next prime is 1400801. The reversal of 1400791 is 1970041.

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

It is a cyclic number.

It is not a de Polignac number, because 1400791 - 2⁹ = 1400279 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1400701) 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, 625 + ... + 1786.

It is an arithmetic number, because the mean of its divisors is an integer number (202608).

2^1400791 is an apocalyptic number.

1400791 is a deficient number, since it is larger than the sum of its proper divisors (220073).

1400791 is an equidigital number, since it uses as much as digits as its factorization.

1400791 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2501.

The product of its (nonzero) digits is 252, while the sum is 22.

The square root of 1400791 is about 1183.5501679270. The cubic root of 1400791 is about 111.8899588832.

The spelling of 1400791 in words is "one million, four hundred thousand, seven hundred ninety-one".