77473743 has 16 divisors (see below), whose sum is σ = 112905216. Its totient is φ = 47041920.

The previous prime is 77473733. The next prime is 77473769. The reversal of 77473743 is 34737477.

It is not a de Polignac number, because 77473743 - 2⁴ = 77473727 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77473695 and 77473704.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77473733) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22921 + ... + 26082.

It is an arithmetic number, because the mean of its divisors is an integer number (7056576).

Almost surely, 2^77473743 is an apocalyptic number.

77473743 is a deficient number, since it is larger than the sum of its proper divisors (35431473).

77473743 is a wasteful number, since it uses less digits than its factorization.

77473743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49054.

The product of its digits is 345744, while the sum is 42.

The square root of 77473743 is about 8801.9170071070. The cubic root of 77473743 is about 426.3027944915.

The spelling of 77473743 in words is "seventy-seven million, four hundred seventy-three thousand, seven hundred forty-three".