2912905379 has 4 divisors (see below), whose sum is σ = 2913127320. Its totient is φ = 2912683440.

The previous prime is 2912905313. The next prime is 2912905381. The reversal of 2912905379 is 9735092192.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2912905379 - 2¹² = 2912901283 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2912905399) 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, 89957 + ... + 117974.

It is an arithmetic number, because the mean of its divisors is an integer number (728281830).

Almost surely, 2^2912905379 is an apocalyptic number.

2912905379 is a deficient number, since it is larger than the sum of its proper divisors (221941).

2912905379 is a wasteful number, since it uses less digits than its factorization.

2912905379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 221940.

The product of its (nonzero) digits is 306180, while the sum is 47.

The square root of 2912905379 is about 53971.3384955385. The cubic root of 2912905379 is about 1428.1553764598.

The spelling of 2912905379 in words is "two billion, nine hundred twelve million, nine hundred five thousand, three hundred seventy-nine".