287378607 has 4 divisors (see below), whose sum is σ = 383171480. Its totient is φ = 191585736.

The previous prime is 287378599. The next prime is 287378621. The reversal of 287378607 is 706873782.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 287378607 - 2³ = 287378599 is a prime.

It is a super-2 number, since 2×287378607² = 165172927522520898, which contains 22 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 (287378107) 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, 47896432 + ... + 47896437.

It is an arithmetic number, because the mean of its divisors is an integer number (95792870).

Almost surely, 2^287378607 is an apocalyptic number.

287378607 is a deficient number, since it is larger than the sum of its proper divisors (95792873).

287378607 is an equidigital number, since it uses as much as digits as its factorization.

287378607 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95792872.

The product of its (nonzero) digits is 790272, while the sum is 48.

The square root of 287378607 is about 16952.2448955883. The cubic root of 287378607 is about 659.9101553551.

The spelling of 287378607 in words is "two hundred eighty-seven million, three hundred seventy-eight thousand, six hundred seven".