7672945 has 16 divisors (see below), whose sum is σ = 10781568. Its totient is φ = 5132160.

The previous prime is 7672943. The next prime is 7672981. The reversal of 7672945 is 5492767.

It is not a de Polignac number, because 7672945 - 2¹ = 7672943 is a prime.

It is an Ulam number.

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

7672945 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 7672898 and 7672907.

It is not an unprimeable number, because it can be changed into a prime (7672943) by changing a digit.

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, 1239 + ... + 4108.

It is an arithmetic number, because the mean of its divisors is an integer number (673848).

Almost surely, 2^7672945 is an apocalyptic number.

It is an amenable number.

7672945 is a deficient number, since it is larger than the sum of its proper divisors (3108623).

7672945 is a wasteful number, since it uses less digits than its factorization.

7672945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5400.

The product of its digits is 105840, while the sum is 40.

The square root of 7672945 is about 2770.0081227318. The cubic root of 7672945 is about 197.2365338054.

The spelling of 7672945 in words is "seven million, six hundred seventy-two thousand, nine hundred forty-five".