77461516 has 24 divisors (see below), whose sum is σ = 154312704. Its totient is φ = 33678480.

The previous prime is 77461477. The next prime is 77461547. The reversal of 77461516 is 61516477.

It is a super-2 number, since 2×77461516² = 12000572922036512, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 37260 + ... + 39283.

It is an arithmetic number, because the mean of its divisors is an integer number (6429696).

Almost surely, 2^77461516 is an apocalyptic number.

It is an amenable number.

77461516 is a deficient number, since it is larger than the sum of its proper divisors (76851188).

77461516 is a wasteful number, since it uses less digits than its factorization.

77461516 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76581 (or 76579 counting only the distinct ones).

The product of its digits is 35280, while the sum is 37.

The square root of 77461516 is about 8801.2224150967. Note that the first 3 decimals coincide. The cubic root of 77461516 is about 426.2803667704.

It can be divided in two parts, 77461 and 516, that added together give a palindrome (77977).

The spelling of 77461516 in words is "seventy-seven million, four hundred sixty-one thousand, five hundred sixteen".