3955901907 has 6 divisors (see below), whose sum is σ = 5274681132. Its totient is φ = 2637195312.

The previous prime is 3955901899. The next prime is 3955901923. The reversal of 3955901907 is 7091095593.

It is not a de Polignac number, because 3955901907 - 2³ = 3955901899 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3955901407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 90783 + ... + 127095.

It is an arithmetic number, because the mean of its divisors is an integer number (879113522).

Almost surely, 2^3955901907 is an apocalyptic number.

3955901907 is a deficient number, since it is larger than the sum of its proper divisors (1318779225).

3955901907 is an frugal number, since it uses more digits than its factorization.

3955901907 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72629 (or 36316 counting only the distinct ones).

The product of its (nonzero) digits is 382725, while the sum is 48.

The square root of 3955901907 is about 62895.9609752486. The cubic root of 3955901907 is about 1581.5460361087.

Multiplying 3955901907 by its sum of digits (48), we get a square (189883291536 = 435756²).

The spelling of 3955901907 in words is "three billion, nine hundred fifty-five million, nine hundred one thousand, nine hundred seven".