67406722 has 4 divisors (see below), whose sum is σ = 101110086. Its totient is φ = 33703360.

The previous prime is 67406687. The next prime is 67406723. The reversal of 67406722 is 22760476.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 51969681 + 15437041 = 7209^2 + 3929^2 .

It is not an unprimeable number, because it can be changed into a prime (67406723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16851679 + ... + 16851682.

Almost surely, 2^67406722 is an apocalyptic number.

67406722 is a deficient number, since it is larger than the sum of its proper divisors (33703364).

67406722 is a wasteful number, since it uses less digits than its factorization.

67406722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33703363.

The product of its (nonzero) digits is 28224, while the sum is 34.

The square root of 67406722 is about 8210.1596817602. The cubic root of 67406722 is about 406.9750038477.

The spelling of 67406722 in words is "sixty-seven million, four hundred six thousand, seven hundred twenty-two".