1400747 has 2 divisors, whose sum is σ = 1400748. Its totient is φ = 1400746.

The previous prime is 1400731. The next prime is 1400753. The reversal of 1400747 is 7470041.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1400747 - 2⁴ = 1400731 is a prime.

It is not a weakly prime, because it can be changed into another prime (1400947) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 700373 + 700374.

It is an arithmetic number, because the mean of its divisors is an integer number (700374).

2^1400747 is an apocalyptic number.

1400747 is a deficient number, since it is larger than the sum of its proper divisors (1).

1400747 is an equidigital number, since it uses as much as digits as its factorization.

1400747 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 784, while the sum is 23.

The square root of 1400747 is about 1183.5315796378. The cubic root of 1400747 is about 111.8887873523. Note that the first 3 decimals are identical.

Adding to 1400747 its reverse (7470041), we get a palindrome (8870788).

The spelling of 1400747 in words is "one million, four hundred thousand, seven hundred forty-seven".