77457341 has 4 divisors (see below), whose sum is σ = 83415612. Its totient is φ = 71499072.

The previous prime is 77457337. The next prime is 77457361. The reversal of 77457341 is 14375477.

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

It can be written as a sum of positive squares in 2 ways, for example, as 19545241 + 57912100 = 4421^2 + 7610^2 .

It is a cyclic number.

It is not a de Polignac number, because 77457341 - 2² = 77457337 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 77457295 and 77457304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77457301) 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, 2979116 + ... + 2979141.

It is an arithmetic number, because the mean of its divisors is an integer number (20853903).

Almost surely, 2^77457341 is an apocalyptic number.

It is an amenable number.

77457341 is a deficient number, since it is larger than the sum of its proper divisors (5958271).

77457341 is a wasteful number, since it uses less digits than its factorization.

77457341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5958270.

The product of its digits is 82320, while the sum is 38.

The square root of 77457341 is about 8800.9852289389. The cubic root of 77457341 is about 426.2727081179.

The spelling of 77457341 in words is "seventy-seven million, four hundred fifty-seven thousand, three hundred forty-one".