7214645 has 8 divisors (see below), whose sum is σ = 8696760. Its totient is φ = 5745600.

The previous prime is 7214639. The next prime is 7214651. The reversal of 7214645 is 5464127.

It is an interprime number because it is at equal distance from previous prime (7214639) and next prime (7214651).

It can be written as a sum of positive squares in 4 ways, for example, as 2579236 + 4635409 = 1606^2 + 2153^2 .

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

It is not a de Polignac number, because 7214645 - 2¹⁰ = 7213621 is a prime.

It is a super-2 number, since 2×7214645² = 104102204952050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2006 + ... + 4295.

It is an arithmetic number, because the mean of its divisors is an integer number (1087095).

Almost surely, 2^7214645 is an apocalyptic number.

It is an amenable number.

7214645 is a deficient number, since it is larger than the sum of its proper divisors (1482115).

7214645 is a wasteful number, since it uses less digits than its factorization.

7214645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6535.

The product of its digits is 6720, while the sum is 29.

The square root of 7214645 is about 2686.0091213546. The cubic root of 7214645 is about 193.2287104034.

The spelling of 7214645 in words is "seven million, two hundred fourteen thousand, six hundred forty-five".