67609045 has 16 divisors (see below), whose sum is σ = 94243968. Its totient is φ = 45599040.

The previous prime is 67609043. The next prime is 67609057. The reversal of 67609045 is 54090676.

It is not a de Polignac number, because 67609045 - 2¹ = 67609043 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 67608995 and 67609013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67609043) 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, 13699 + ... + 17968.

It is an arithmetic number, because the mean of its divisors is an integer number (5890248).

Almost surely, 2^67609045 is an apocalyptic number.

It is an amenable number.

67609045 is a deficient number, since it is larger than the sum of its proper divisors (26634923).

67609045 is a wasteful number, since it uses less digits than its factorization.

67609045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31740.

The product of its (nonzero) digits is 45360, while the sum is 37.

The square root of 67609045 is about 8222.4719519132. The cubic root of 67609045 is about 407.3817790975.

The spelling of 67609045 in words is "sixty-seven million, six hundred nine thousand, forty-five".