1390733 has 2 divisors, whose sum is σ = 1390734. Its totient is φ = 1390732.

The previous prime is 1390729. The next prime is 1390757. The reversal of 1390733 is 3370931.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 964324 + 426409 = 982^2 + 653^2 .

It is a cyclic number.

It is not a de Polignac number, because 1390733 - 2² = 1390729 is a prime.

It is a Chen prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1390703) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 695366 + 695367.

It is an arithmetic number, because the mean of its divisors is an integer number (695367).

2^1390733 is an apocalyptic number.

It is an amenable number.

1390733 is a deficient number, since it is larger than the sum of its proper divisors (1).

1390733 is an equidigital number, since it uses as much as digits as its factorization.

1390733 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1701, while the sum is 26.

The square root of 1390733 is about 1179.2934325264. The cubic root of 1390733 is about 111.6215168577.

The spelling of 1390733 in words is "one million, three hundred ninety thousand, seven hundred thirty-three".