158797693 has 4 divisors (see below), whose sum is σ = 158827648. Its totient is φ = 158767740.

The previous prime is 158797651. The next prime is 158797711. The reversal of 158797693 is 396797851.

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 158797693 - 2⁹ = 158797181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (158791693) 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, 4653 + ... + 18418.

It is an arithmetic number, because the mean of its divisors is an integer number (39706912).

Almost surely, 2^158797693 is an apocalyptic number.

It is an amenable number.

158797693 is a deficient number, since it is larger than the sum of its proper divisors (29955).

158797693 is an equidigital number, since it uses as much as digits as its factorization.

158797693 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29954.

The product of its digits is 2857680, while the sum is 55.

The square root of 158797693 is about 12601.4956651978. The cubic root of 158797693 is about 541.5202849051.

The spelling of 158797693 in words is "one hundred fifty-eight million, seven hundred ninety-seven thousand, six hundred ninety-three".