82761969 has 12 divisors (see below), whose sum is σ = 114289136. Its totient is φ = 53270448.

The previous prime is 82761961. The next prime is 82761977. The reversal of 82761969 is 96916728.

It is an interprime number because it is at equal distance from previous prime (82761961) and next prime (82761977).

It is not a de Polignac number, because 82761969 - 2³ = 82761961 is a prime.

It is a super-2 number, since 2×82761969² = 13699087025513922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (82761961) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 13879 + ... + 18924.

Almost surely, 2^82761969 is an apocalyptic number.

It is an amenable number.

82761969 is a deficient number, since it is larger than the sum of its proper divisors (31527167).

82761969 is a wasteful number, since it uses less digits than its factorization.

82761969 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32864 (or 32835 counting only the distinct ones).

The product of its digits is 326592, while the sum is 48.

The square root of 82761969 is about 9097.3605512808. The cubic root of 82761969 is about 435.7896767050.

The spelling of 82761969 in words is "eighty-two million, seven hundred sixty-one thousand, nine hundred sixty-nine".