1552993 has 8 divisors (see below), whose sum is σ = 1698368. Its totient is φ = 1411344.

The previous prime is 1552987. The next prime is 1552997. The reversal of 1552993 is 3992551.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1552993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1552997) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21 + ... + 1762.

It is an arithmetic number, because the mean of its divisors is an integer number (212296).

2^1552993 is an apocalyptic number.

1552993 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1552993 is a deficient number, since it is larger than the sum of its proper divisors (145375).

1552993 is a wasteful number, since it uses less digits than its factorization.

1552993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1863.

The product of its digits is 12150, while the sum is 34.

The square root of 1552993 is about 1246.1913978198. The cubic root of 1552993 is about 115.8038947784.

The spelling of 1552993 in words is "one million, five hundred fifty-two thousand, nine hundred ninety-three".