7672131 has 8 divisors (see below), whose sum is σ = 11366160. Its totient is φ = 5114736.

The previous prime is 7672127. The next prime is 7672141. The reversal of 7672131 is 1312767.

It is not a de Polignac number, because 7672131 - 2² = 7672127 is a prime.

It is a super-2 number, since 2×7672131² = 117723188162322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 284153 = 7672131 / (7 + 6 + 7 + 2 + 1 + 3 + 1).

It is an Ulam number.

7672131 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7672095 and 7672104.

It is not an unprimeable number, because it can be changed into a prime (7672111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142050 + ... + 142103.

It is an arithmetic number, because the mean of its divisors is an integer number (1420770).

Almost surely, 2^7672131 is an apocalyptic number.

7672131 is a deficient number, since it is larger than the sum of its proper divisors (3694029).

7672131 is a wasteful number, since it uses less digits than its factorization.

7672131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284162 (or 284156 counting only the distinct ones).

The product of its digits is 1764, while the sum is 27.

The square root of 7672131 is about 2769.8611878576. The cubic root of 7672131 is about 197.2295588122.

Adding to 7672131 its reverse (1312767), we get a palindrome (8984898).

The spelling of 7672131 in words is "seven million, six hundred seventy-two thousand, one hundred thirty-one".