77457011 has 4 divisors (see below), whose sum is σ = 78390312. Its totient is φ = 76523712.

The previous prime is 77456983. The next prime is 77457041. The reversal of 77457011 is 11075477.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77457011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77457041) 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, 466526 + ... + 466691.

It is an arithmetic number, because the mean of its divisors is an integer number (19597578).

Almost surely, 2^77457011 is an apocalyptic number.

77457011 is a deficient number, since it is larger than the sum of its proper divisors (933301).

77457011 is an equidigital number, since it uses as much as digits as its factorization.

77457011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 933300.

The product of its (nonzero) digits is 6860, while the sum is 32.

The square root of 77457011 is about 8800.9664810179. The cubic root of 77457011 is about 426.2721027516.

The spelling of 77457011 in words is "seventy-seven million, four hundred fifty-seven thousand, eleven".