7631971 has 2 divisors, whose sum is σ = 7631972. Its totient is φ = 7631970.

The previous prime is 7631969. The next prime is 7631999. The reversal of 7631971 is 1791367.

It is a happy number.

7631971 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 7631971 - 2¹ = 7631969 is a prime.

It is a super-3 number, since 3×7631971³ (a number of 22 digits) contains 333 as substring.

Together with 7631969, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (7631951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3815985 + 3815986.

It is an arithmetic number, because the mean of its divisors is an integer number (3815986).

Almost surely, 2^7631971 is an apocalyptic number.

7631971 is a deficient number, since it is larger than the sum of its proper divisors (1).

7631971 is an equidigital number, since it uses as much as digits as its factorization.

7631971 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7938, while the sum is 34.

The square root of 7631971 is about 2762.6022153035. The cubic root of 7631971 is about 196.8848219170.

The spelling of 7631971 in words is "seven million, six hundred thirty-one thousand, nine hundred seventy-one".