67522990 has 16 divisors (see below), whose sum is σ = 123007248. Its totient is φ = 26683456.

The previous prime is 67522981. The next prime is 67522999. The reversal of 67522990 is 9922576.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (67522981) and next prime (67522999).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67522999) 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 7 ways as a sum of consecutive naturals, for example, 39847 + ... + 41506.

It is an arithmetic number, because the mean of its divisors is an integer number (7687953).

Almost surely, 2^67522990 is an apocalyptic number.

67522990 is a deficient number, since it is larger than the sum of its proper divisors (55484258).

67522990 is a wasteful number, since it uses less digits than its factorization.

67522990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81443.

The product of its (nonzero) digits is 68040, while the sum is 40.

The square root of 67522990 is about 8217.2373703088. The cubic root of 67522990 is about 407.2088627689.

The spelling of 67522990 in words is "sixty-seven million, five hundred twenty-two thousand, nine hundred ninety".