773541381 has 4 divisors (see below), whose sum is σ = 1031388512. Its totient is φ = 515694252.

The previous prime is 773541371. The next prime is 773541401. The reversal of 773541381 is 183145377.

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 773541381 - 2⁷ = 773541253 is a prime.

It is a super-2 number, since 2×773541381² = 1196732536238774322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (773541371) 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, 128923561 + ... + 128923566.

It is an arithmetic number, because the mean of its divisors is an integer number (257847128).

Almost surely, 2^773541381 is an apocalyptic number.

It is an amenable number.

773541381 is a deficient number, since it is larger than the sum of its proper divisors (257847131).

773541381 is a wasteful number, since it uses less digits than its factorization.

773541381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 257847130.

The product of its digits is 70560, while the sum is 39.

The square root of 773541381 is about 27812.6119053928. The cubic root of 773541381 is about 917.9686517743.

The spelling of 773541381 in words is "seven hundred seventy-three million, five hundred forty-one thousand, three hundred eighty-one".