67069690 has 8 divisors (see below), whose sum is σ = 120725460. Its totient is φ = 26827872.

The previous prime is 67069669. The next prime is 67069697. The reversal of 67069690 is 9696076.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 62110161 + 4959529 = 7881^2 + 2227^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×67069690² = 8996686633392200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (67069697) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3353475 + ... + 3353494.

Almost surely, 2^67069690 is an apocalyptic number.

67069690 is a deficient number, since it is larger than the sum of its proper divisors (53655770).

67069690 is a wasteful number, since it uses less digits than its factorization.

67069690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6706976.

The product of its (nonzero) digits is 122472, while the sum is 43.

The square root of 67069690 is about 8189.6086597590. The cubic root of 67069690 is about 406.2955817888.

The spelling of 67069690 in words is "sixty-seven million, sixty-nine thousand, six hundred ninety".