3964621463 has 4 divisors (see below), whose sum is σ = 4325041608. Its totient is φ = 3604201320.

The previous prime is 3964621439. The next prime is 3964621489. The reversal of 3964621463 is 3641264693.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3641264693 = 11 ⋅331024063.

It is a cyclic number.

It is not a de Polignac number, because 3964621463 - 2³⁰ = 2890879639 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3964621433) 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, 180210056 + ... + 180210077.

It is an arithmetic number, because the mean of its divisors is an integer number (1081260402).

Almost surely, 2^3964621463 is an apocalyptic number.

3964621463 is a deficient number, since it is larger than the sum of its proper divisors (360420145).

3964621463 is a wasteful number, since it uses less digits than its factorization.

3964621463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360420144.

The product of its digits is 559872, while the sum is 44.

The square root of 3964621463 is about 62965.2401170678. The cubic root of 3964621463 is about 1582.7071922530.

The spelling of 3964621463 in words is "three billion, nine hundred sixty-four million, six hundred twenty-one thousand, four hundred sixty-three".