7456945 has 16 divisors (see below), whose sum is σ = 9499392. Its totient is φ = 5607360.

The previous prime is 7456921. The next prime is 7456963. The reversal of 7456945 is 5496547.

It is not a de Polignac number, because 7456945 - 2⁹ = 7456433 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7456898 and 7456907.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6484 + ... + 7546.

It is an arithmetic number, because the mean of its divisors is an integer number (593712).

Almost surely, 2^7456945 is an apocalyptic number.

It is an amenable number.

7456945 is a deficient number, since it is larger than the sum of its proper divisors (2042447).

7456945 is a wasteful number, since it uses less digits than its factorization.

7456945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1152.

The product of its digits is 151200, while the sum is 40.

The square root of 7456945 is about 2730.7407419966. The cubic root of 7456945 is about 195.3680971750.

The spelling of 7456945 in words is "seven million, four hundred fifty-six thousand, nine hundred forty-five".