1896407487 has 12 divisors (see below), whose sum is σ = 2949967384. Its totient is φ = 1167019920.

The previous prime is 1896407479. The next prime is 1896407497. The reversal of 1896407487 is 7847046981.

It is a happy number.

It is not a de Polignac number, because 1896407487 - 2³ = 1896407479 is a prime.

It is a super-2 number, since 2×1896407487² = 7192722713499310338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1896407407) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8104189 + ... + 8104422.

Almost surely, 2^1896407487 is an apocalyptic number.

1896407487 is a deficient number, since it is larger than the sum of its proper divisors (1053559897).

1896407487 is a wasteful number, since it uses less digits than its factorization.

1896407487 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16208630 (or 16208627 counting only the distinct ones).

The product of its (nonzero) digits is 2709504, while the sum is 54.

The square root of 1896407487 is about 43547.7609872195. The cubic root of 1896407487 is about 1237.7812140831.

The spelling of 1896407487 in words is "one billion, eight hundred ninety-six million, four hundred seven thousand, four hundred eighty-seven".