3890987486 has 4 divisors (see below), whose sum is σ = 5836481232. Its totient is φ = 1945493742.

The previous prime is 3890987473. The next prime is 3890987521. The reversal of 3890987486 is 6847890983.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 972746870 + ... + 972746873.

It is an arithmetic number, because the mean of its divisors is an integer number (1459120308).

Almost surely, 2^3890987486 is an apocalyptic number.

3890987486 is a deficient number, since it is larger than the sum of its proper divisors (1945493746).

3890987486 is a wasteful number, since it uses less digits than its factorization.

3890987486 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1945493745.

The product of its (nonzero) digits is 20901888, while the sum is 62.

The square root of 3890987486 is about 62377.7803869294. The cubic root of 3890987486 is about 1572.8474817794.

The spelling of 3890987486 in words is "three billion, eight hundred ninety million, nine hundred eighty-seven thousand, four hundred eighty-six".