3954353957 has 8 divisors (see below), whose sum is σ = 4094702040. Its totient is φ = 3814272000.

The previous prime is 3954353941. The next prime is 3954353983. The reversal of 3954353957 is 7593534593.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 2659361761 + 1294992196 = 51569^2 + 35986^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3954353957 - 2⁴ = 3954353941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3954353899 and 3954353908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3954353257) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36044 + ... + 95957.

It is an arithmetic number, because the mean of its divisors is an integer number (511837755).

Almost surely, 2^3954353957 is an apocalyptic number.

It is an amenable number.

3954353957 is a deficient number, since it is larger than the sum of its proper divisors (140348083).

3954353957 is a wasteful number, since it uses less digits than its factorization.

3954353957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133063.

The product of its digits is 7654500, while the sum is 53.

The square root of 3954353957 is about 62883.6541320557. The cubic root of 3954353957 is about 1581.3397221306.

It can be divided in two parts, 3954 and 353957, that added together give a cube (357911 = 71³).

The spelling of 3954353957 in words is "three billion, nine hundred fifty-four million, three hundred fifty-three thousand, nine hundred fifty-seven".