7975545 has 16 divisors (see below), whose sum is σ = 12830400. Its totient is φ = 4230464.

The previous prime is 7975543. The next prime is 7975559. The reversal of 7975545 is 5455797.

It is a cyclic number.

It is not a de Polignac number, because 7975545 - 2¹ = 7975543 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7975497 and 7975506.

It is not an unprimeable number, because it can be changed into a prime (7975543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1606 + ... + 4304.

It is an arithmetic number, because the mean of its divisors is an integer number (801900).

Almost surely, 2^7975545 is an apocalyptic number.

It is an amenable number.

7975545 is a deficient number, since it is larger than the sum of its proper divisors (4854855).

7975545 is a wasteful number, since it uses less digits than its factorization.

7975545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2904.

The product of its digits is 220500, while the sum is 42.

The square root of 7975545 is about 2824.1007418292. The cubic root of 7975545 is about 199.7960003247.

It can be divided in two parts, 79755 and 45, that added together give a triangular number (79800 = T₃₉₉).

The spelling of 7975545 in words is "seven million, nine hundred seventy-five thousand, five hundred forty-five".