672850815 has 64 divisors (see below), whose sum is σ = 1367826432. Its totient is φ = 274752000.

The previous prime is 672850813. The next prime is 672850817. The reversal of 672850815 is 518058276.

It is an interprime number because it is at equal distance from previous prime (672850813) and next prime (672850817).

It is not a de Polignac number, because 672850815 - 2¹ = 672850813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (672850811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 34365 + ... + 50265.

It is an arithmetic number, because the mean of its divisors is an integer number (21372288).

Almost surely, 2^672850815 is an apocalyptic number.

672850815 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

672850815 is an abundant number, since it is smaller than the sum of its proper divisors (694975617).

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

672850815 is a wasteful number, since it uses less digits than its factorization.

672850815 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15960.

The product of its (nonzero) digits is 134400, while the sum is 42.

The square root of 672850815 is about 25939.3680532121. The cubic root of 672850815 is about 876.2733308671.

The spelling of 672850815 in words is "six hundred seventy-two million, eight hundred fifty thousand, eight hundred fifteen".