672506477 has 8 divisors (see below), whose sum is σ = 689403960. Its totient is φ = 655632640.

The previous prime is 672506437. The next prime is 672506489. The reversal of 672506477 is 774605276.

It can be written as a sum of positive squares in 4 ways, for example, as 120538441 + 551968036 = 10979^2 + 23494^2 .

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

It is not a de Polignac number, because 672506477 - 2¹⁶ = 672440941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672506437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61049 + ... + 71217.

It is an arithmetic number, because the mean of its divisors is an integer number (86175495).

Almost surely, 2^672506477 is an apocalyptic number.

It is an amenable number.

672506477 is a deficient number, since it is larger than the sum of its proper divisors (16897483).

672506477 is a wasteful number, since it uses less digits than its factorization.

672506477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11823.

The product of its (nonzero) digits is 493920, while the sum is 44.

The square root of 672506477 is about 25932.7298408787. The cubic root of 672506477 is about 876.1238248716.

The spelling of 672506477 in words is "six hundred seventy-two million, five hundred six thousand, four hundred seventy-seven".