16087697 has 4 divisors (see below), whose sum is σ = 16230180. Its totient is φ = 15945216.

The previous prime is 16087693. The next prime is 16087723. The reversal of 16087697 is 79678061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79678061 = 439 ⋅181499.

It can be written as a sum of positive squares in 2 ways, for example, as 4363921 + 11723776 = 2089^2 + 3424^2 .

It is a cyclic number.

It is not a de Polignac number, because 16087697 - 2² = 16087693 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16087693) 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, 71072 + ... + 71297.

It is an arithmetic number, because the mean of its divisors is an integer number (4057545).

Almost surely, 2^16087697 is an apocalyptic number.

It is an amenable number.

16087697 is a deficient number, since it is larger than the sum of its proper divisors (142483).

16087697 is a wasteful number, since it uses less digits than its factorization.

16087697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142482.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 16087697 is about 4010.9471450020. The cubic root of 16087697 is about 252.4437518076.

The spelling of 16087697 in words is "sixteen million, eighty-seven thousand, six hundred ninety-seven".