3405211387 has 4 divisors (see below), whose sum is σ = 3553264080. Its totient is φ = 3257158696.

The previous prime is 3405211307. The next prime is 3405211393. The reversal of 3405211387 is 7831125043.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7831125043 = 7 ⋅1118732149.

It is a cyclic number.

It is not a de Polignac number, because 3405211387 - 2⁷ = 3405211259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3405211307) 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, 74026312 + ... + 74026357.

It is an arithmetic number, because the mean of its divisors is an integer number (888316020).

Almost surely, 2^3405211387 is an apocalyptic number.

3405211387 is a deficient number, since it is larger than the sum of its proper divisors (148052693).

3405211387 is a wasteful number, since it uses less digits than its factorization.

3405211387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148052692.

The product of its (nonzero) digits is 20160, while the sum is 34.

The square root of 3405211387 is about 58354.1891126935. The cubic root of 3405211387 is about 1504.4624721005.

The spelling of 3405211387 in words is "three billion, four hundred five million, two hundred eleven thousand, three hundred eighty-seven".