67910825 has 12 divisors (see below), whose sum is σ = 84643020. Its totient is φ = 54048960.

The previous prime is 67910819. The next prime is 67910831. The reversal of 67910825 is 52801976.

It is an interprime number because it is at equal distance from previous prime (67910819) and next prime (67910831).

It can be written as a sum of positive squares in 6 ways, for example, as 14868736 + 53042089 = 3856^2 + 7283^2 .

It is not a de Polignac number, because 67910825 - 2⁴ = 67910809 is a prime.

It is a super-2 number, since 2×67910825² = 9223760304361250, which contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 1970 + ... + 11819.

It is an arithmetic number, because the mean of its divisors is an integer number (7053585).

Almost surely, 2^67910825 is an apocalyptic number.

It is an amenable number.

67910825 is a deficient number, since it is larger than the sum of its proper divisors (16732195).

67910825 is a wasteful number, since it uses less digits than its factorization.

67910825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13996 (or 13991 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 38.

The square root of 67910825 is about 8240.8024487910. The cubic root of 67910825 is about 407.9870097908.

The spelling of 67910825 in words is "sixty-seven million, nine hundred ten thousand, eight hundred twenty-five".