1398793 has 4 divisors (see below), whose sum is σ = 1525968. Its totient is φ = 1271620.

The previous prime is 1398781. The next prime is 1398841. The reversal of 1398793 is 3978931.

1398793 = T₁₇₂ + T₁₇₃ + ... + T₂₃₇.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1398793 - 2⁹ = 1398281 is a prime.

It is a Duffinian number.

1398793 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1398763) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 63571 + ... + 63592.

It is an arithmetic number, because the mean of its divisors is an integer number (381492).

2^1398793 is an apocalyptic number.

It is an amenable number.

1398793 is a deficient number, since it is larger than the sum of its proper divisors (127175).

1398793 is a wasteful number, since it uses less digits than its factorization.

1398793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127174.

The product of its digits is 40824, while the sum is 40.

The square root of 1398793 is about 1182.7057960457. The cubic root of 1398793 is about 111.8367359753.

The spelling of 1398793 in words is "one million, three hundred ninety-eight thousand, seven hundred ninety-three".