7642471 has 4 divisors (see below), whose sum is σ = 7670944. Its totient is φ = 7614000.

The previous prime is 7642403. The next prime is 7642487. The reversal of 7642471 is 1742467.

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

It is a cyclic number.

It is not a de Polignac number, because 7642471 - 2⁷ = 7642343 is a prime.

It is a super-3 number, since 3×7642471³ (a number of 22 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7642171) 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, 13830 + ... + 14371.

It is an arithmetic number, because the mean of its divisors is an integer number (1917736).

Almost surely, 2^7642471 is an apocalyptic number.

7642471 is a deficient number, since it is larger than the sum of its proper divisors (28473).

7642471 is a wasteful number, since it uses less digits than its factorization.

7642471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28472.

The product of its digits is 9408, while the sum is 31.

The square root of 7642471 is about 2764.5019442930. The cubic root of 7642471 is about 196.9750713558.

The spelling of 7642471 in words is "seven million, six hundred forty-two thousand, four hundred seventy-one".