162780897 has 8 divisors (see below), whose sum is σ = 218424256. Its totient is φ = 107829072.

The previous prime is 162780887. The next prime is 162780931. The reversal of 162780897 is 798087261.

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

It is not a de Polignac number, because 162780897 - 2⁶ = 162780833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (162780817) 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, 172333 + ... + 173274.

It is an arithmetic number, because the mean of its divisors is an integer number (27303032).

Almost surely, 2^162780897 is an apocalyptic number.

It is an amenable number.

162780897 is a deficient number, since it is larger than the sum of its proper divisors (55643359).

162780897 is a wasteful number, since it uses less digits than its factorization.

162780897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 345767.

The product of its (nonzero) digits is 338688, while the sum is 48.

The square root of 162780897 is about 12758.5617136102. The cubic root of 162780897 is about 546.0106902602.

The spelling of 162780897 in words is "one hundred sixty-two million, seven hundred eighty thousand, eight hundred ninety-seven".