3398403961 has 4 divisors (see below), whose sum is σ = 3399553872. Its totient is φ = 3397254052.

The previous prime is 3398403917. The next prime is 3398403977. The reversal of 3398403961 is 1693048933.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1693048933 = 43 ⋅39373231.

It is a cyclic number.

It is not a de Polignac number, because 3398403961 - 2¹¹ = 3398401913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3398403991) 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, 570511 + ... + 576436.

It is an arithmetic number, because the mean of its divisors is an integer number (849888468).

Almost surely, 2^3398403961 is an apocalyptic number.

It is an amenable number.

3398403961 is a deficient number, since it is larger than the sum of its proper divisors (1149911).

3398403961 is a wasteful number, since it uses less digits than its factorization.

3398403961 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1149910.

The product of its (nonzero) digits is 419904, while the sum is 46.

The square root of 3398403961 is about 58295.8314204369. The cubic root of 3398403961 is about 1503.4592696511.

The spelling of 3398403961 in words is "three billion, three hundred ninety-eight million, four hundred three thousand, nine hundred sixty-one".