16097977 has 4 divisors (see below), whose sum is σ = 18397696. Its totient is φ = 13798260.

The previous prime is 16097971. The next prime is 16098001. The reversal of 16097977 is 77979061.

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, and also an emirpimes, since its reverse is a distinct semiprime: 77979061 = 59 ⋅1321679.

It is not a de Polignac number, because 16097977 - 2³ = 16097969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16097971) 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, 1149849 + ... + 1149862.

It is an arithmetic number, because the mean of its divisors is an integer number (4599424).

Almost surely, 2^16097977 is an apocalyptic number.

It is an amenable number.

16097977 is a deficient number, since it is larger than the sum of its proper divisors (2299719).

16097977 is an equidigital number, since it uses as much as digits as its factorization.

16097977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2299718.

The product of its (nonzero) digits is 166698, while the sum is 46.

The square root of 16097977 is about 4012.2284331778. The cubic root of 16097977 is about 252.4975106770.

The spelling of 16097977 in words is "sixteen million, ninety-seven thousand, nine hundred seventy-seven".