4087634 has 4 divisors (see below), whose sum is σ = 6131454. Its totient is φ = 2043816.

The previous prime is 4087631. The next prime is 4087639. The reversal of 4087634 is 4367804.

It is a happy number.

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

It can be written as a sum of positive squares in only one way, i.e., 4012009 + 75625 = 2003^2 + 275^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4087634.

It is not an unprimeable number, because it can be changed into a prime (4087631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1021907 + ... + 1021910.

Almost surely, 2^4087634 is an apocalyptic number.

4087634 is a deficient number, since it is larger than the sum of its proper divisors (2043820).

4087634 is a wasteful number, since it uses less digits than its factorization.

4087634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2043819.

The product of its (nonzero) digits is 16128, while the sum is 32.

The square root of 4087634 is about 2021.7898011416. The cubic root of 4087634 is about 159.8909934600.

The spelling of 4087634 in words is "four million, eighty-seven thousand, six hundred thirty-four".