7428971 has 8 divisors (see below), whose sum is σ = 8323824. Its totient is φ = 6570720.

The previous prime is 7428937. The next prime is 7428997. The reversal of 7428971 is 1798247.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7428971 - 2¹⁰ = 7427947 is a prime.

It is a super-2 number, since 2×7428971² = 110379220237682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7428271) 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, 8720 + ... + 9533.

It is an arithmetic number, because the mean of its divisors is an integer number (1040478).

Almost surely, 2^7428971 is an apocalyptic number.

7428971 is a deficient number, since it is larger than the sum of its proper divisors (894853).

7428971 is a wasteful number, since it uses less digits than its factorization.

7428971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18301.

The product of its digits is 28224, while the sum is 38.

The square root of 7428971 is about 2725.6138758085. The cubic root of 7428971 is about 195.1234896082.

The spelling of 7428971 in words is "seven million, four hundred twenty-eight thousand, nine hundred seventy-one".