7485643 has 8 divisors (see below), whose sum is σ = 8340480. Its totient is φ = 6659880.

The previous prime is 7485641. The next prime is 7485659. The reversal of 7485643 is 3465847.

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 7485643 - 2¹ = 7485641 is a prime.

It is a super-2 number, since 2×7485643² = 112069702246898, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7485641) 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, 6723 + ... + 7756.

It is an arithmetic number, because the mean of its divisors is an integer number (1042560).

Almost surely, 2^7485643 is an apocalyptic number.

7485643 is a deficient number, since it is larger than the sum of its proper divisors (854837).

7485643 is a wasteful number, since it uses less digits than its factorization.

7485643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14537.

The product of its digits is 80640, while the sum is 37.

The square root of 7485643 is about 2735.9903143103. The cubic root of 7485643 is about 195.6184005980.

It can be divided in two parts, 7485 and 643, that added together give a triangular number (8128 = T₁₂₇).

The spelling of 7485643 in words is "seven million, four hundred eighty-five thousand, six hundred forty-three".