76849897 has 4 divisors (see below), whose sum is σ = 77240196. Its totient is φ = 76459600.

The previous prime is 76849853. The next prime is 76849931. The reversal of 76849897 is 79894867.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 67963536 + 8886361 = 8244^2 + 2981^2 .

It is a cyclic number.

It is not a de Polignac number, because 76849897 - 2⁷ = 76849769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76849397) 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, 194854 + ... + 195247.

It is an arithmetic number, because the mean of its divisors is an integer number (19310049).

Almost surely, 2^76849897 is an apocalyptic number.

It is an amenable number.

76849897 is a deficient number, since it is larger than the sum of its proper divisors (390299).

76849897 is a wasteful number, since it uses less digits than its factorization.

76849897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390298.

The product of its digits is 6096384, while the sum is 58.

The square root of 76849897 is about 8766.4073028807. The cubic root of 76849897 is about 425.1554623877.

The spelling of 76849897 in words is "seventy-six million, eight hundred forty-nine thousand, eight hundred ninety-seven".