Search a number
-
+
7697961 = 323723117
BaseRepresentation
bin11101010111011000101001
3112111002121200
4131113120221
53432313321
6432554413
7122301015
oct35273051
915432550
107697961
114388657
1226b2a09
131796b0b
141045545
15a20d26
hex757629

7697961 has 12 divisors (see below), whose sum is σ = 11420292. Its totient is φ = 4993056.

The previous prime is 7697947. The next prime is 7697969. The reversal of 7697961 is 1697967.

It can be written as a sum of positive squares in 2 ways, for example, as 2702736 + 4995225 = 1644^2 + 2235^2 .

It is not a de Polignac number, because 7697961 - 25 = 7697929 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (7697969) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11226 + ... + 11891.

It is an arithmetic number, because the mean of its divisors is an integer number (951691).

Almost surely, 27697961 is an apocalyptic number.

It is an amenable number.

7697961 is a deficient number, since it is larger than the sum of its proper divisors (3722331).

7697961 is a wasteful number, since it uses less digits than its factorization.

7697961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23160 (or 23157 counting only the distinct ones).

The product of its digits is 142884, while the sum is 45.

The square root of 7697961 is about 2774.5199584793. The cubic root of 7697961 is about 197.4506504911.

The spelling of 7697961 in words is "seven million, six hundred ninety-seven thousand, nine hundred sixty-one".

Divisors: 1 3 9 37 111 333 23117 69351 208053 855329 2565987 7697961