1620248593 has 8 divisors (see below), whose sum is σ = 1698147648. Its totient is φ = 1542970704.

The previous prime is 1620248587. The next prime is 1620248603. The reversal of 1620248593 is 3958420261.

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 1620248593 - 2⁹ = 1620248081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1620243593) 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, 149946 + ... + 160387.

It is an arithmetic number, because the mean of its divisors is an integer number (212268456).

Almost surely, 2^1620248593 is an apocalyptic number.

It is an amenable number.

1620248593 is a deficient number, since it is larger than the sum of its proper divisors (77899055).

1620248593 is a wasteful number, since it uses less digits than its factorization.

1620248593 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310583.

The product of its (nonzero) digits is 103680, while the sum is 40.

The square root of 1620248593 is about 40252.3116479041. The cubic root of 1620248593 is about 1174.5203638886.

The spelling of 1620248593 in words is "one billion, six hundred twenty million, two hundred forty-eight thousand, five hundred ninety-three".