3612391287 has 8 divisors (see below), whose sum is σ = 4818127104. Its totient is φ = 2407458168.

The previous prime is 3612391267. The next prime is 3612391301. The reversal of 3612391287 is 7821932163.

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

It is not a de Polignac number, because 3612391287 - 2⁸ = 3612391031 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3612391267) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 190093 + ... + 208230.

It is an arithmetic number, because the mean of its divisors is an integer number (602265888).

Almost surely, 2^3612391287 is an apocalyptic number.

3612391287 is a deficient number, since it is larger than the sum of its proper divisors (1205735817).

3612391287 is a wasteful number, since it uses less digits than its factorization.

3612391287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401349.

The product of its digits is 108864, while the sum is 42.

The square root of 3612391287 is about 60103.1720211172. The cubic root of 3612391287 is about 1534.3752881656.

It can be divided in two parts, 361239 and 1287, that added together give a triangular number (362526 = T₈₅₁).

The spelling of 3612391287 in words is "three billion, six hundred twelve million, three hundred ninety-one thousand, two hundred eighty-seven".