67490477 has 4 divisors (see below), whose sum is σ = 67976160. Its totient is φ = 67004796.

The previous prime is 67490443. The next prime is 67490483. The reversal of 67490477 is 77409476.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 67490477 - 2¹² = 67486381 is a prime.

It is a super-3 number, since 3×67490477³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (67490417) 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, 242633 + ... + 242910.

It is an arithmetic number, because the mean of its divisors is an integer number (16994040).

Almost surely, 2^67490477 is an apocalyptic number.

It is an amenable number.

67490477 is a deficient number, since it is larger than the sum of its proper divisors (485683).

67490477 is a wasteful number, since it uses less digits than its factorization.

67490477 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 485682.

The product of its (nonzero) digits is 296352, while the sum is 44.

The square root of 67490477 is about 8215.2587908112. The cubic root of 67490477 is about 407.1434938858.

The spelling of 67490477 in words is "sixty-seven million, four hundred ninety thousand, four hundred seventy-seven".