4781397 has 4 divisors (see below), whose sum is σ = 6375200. Its totient is φ = 3187596.

The previous prime is 4781389. The next prime is 4781411. The reversal of 4781397 is 7931874.

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.

It is not a de Polignac number, because 4781397 - 2³ = 4781389 is a prime.

It is a D-number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4781197) 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, 796897 + ... + 796902.

It is an arithmetic number, because the mean of its divisors is an integer number (1593800).

Almost surely, 2^4781397 is an apocalyptic number.

It is an amenable number.

4781397 is a deficient number, since it is larger than the sum of its proper divisors (1593803).

4781397 is a wasteful number, since it uses less digits than its factorization.

4781397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593802.

The product of its digits is 42336, while the sum is 39.

The square root of 4781397 is about 2186.6405740313. The cubic root of 4781397 is about 168.4683290098.

It can be divided in two parts, 478 and 1397, that multiplied together give a palindrome (667766).

The spelling of 4781397 in words is "four million, seven hundred eighty-one thousand, three hundred ninety-seven".