3967697440 has 96 divisors (see below), whose sum is σ = 11058453504. Its totient is φ = 1316459520.

The previous prime is 3967697423. The next prime is 3967697467. The reversal of 3967697440 is 447967693.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22419 + ... + 91858.

It is an arithmetic number, because the mean of its divisors is an integer number (115192224).

Almost surely, 2^3967697440 is an apocalyptic number.

It is an amenable number.

3967697440 is an abundant number, since it is smaller than the sum of its proper divisors (7090756064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3967697440 is a wasteful number, since it uses less digits than its factorization.

3967697440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114330 (or 114322 counting only the distinct ones).

The product of its (nonzero) digits is 6858432, while the sum is 55.

The square root of 3967697440 is about 62989.6613739112. The cubic root of 3967697440 is about 1583.1164042847.

The spelling of 3967697440 in words is "three billion, nine hundred sixty-seven million, six hundred ninety-seven thousand, four hundred forty".