5401979 has 8 divisors (see below), whose sum is σ = 5912688. Its totient is φ = 4894560.

The previous prime is 5401973. The next prime is 5401993. The reversal of 5401979 is 9791045.

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

It is a de Polignac number, because none of the positive numbers 2^k-5401979 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5401973) 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, 3749 + ... + 4985.

It is an arithmetic number, because the mean of its divisors is an integer number (739086).

Almost surely, 2^5401979 is an apocalyptic number.

5401979 is a deficient number, since it is larger than the sum of its proper divisors (510709).

5401979 is a wasteful number, since it uses less digits than its factorization.

5401979 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1645.

The product of its (nonzero) digits is 11340, while the sum is 35.

The square root of 5401979 is about 2324.2157817208. The cubic root of 5401979 is about 175.4624936422.

The spelling of 5401979 in words is "five million, four hundred one thousand, nine hundred seventy-nine".