67397646 has 16 divisors (see below), whose sum is σ = 138438864. Its totient is φ = 21858624.

The previous prime is 67397633. The next prime is 67397651. The reversal of 67397646 is 64679376.

It is a junction number, because it is equal to n+sod(n) for n = 67397595 and 67397604.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 151575 + ... + 152018.

It is an arithmetic number, because the mean of its divisors is an integer number (8652429).

Almost surely, 2^67397646 is an apocalyptic number.

67397646 is an abundant number, since it is smaller than the sum of its proper divisors (71041218).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

67397646 is a wasteful number, since it uses less digits than its factorization.

67397646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303635.

The product of its digits is 1143072, while the sum is 48.

The square root of 67397646 is about 8209.6069333434. The cubic root of 67397646 is about 406.9567372673.

The spelling of 67397646 in words is "sixty-seven million, three hundred ninety-seven thousand, six hundred forty-six".