77103381 has 16 divisors (see below), whose sum is σ = 109166400. Its totient is φ = 48238848.

The previous prime is 77103379. The next prime is 77103391. The reversal of 77103381 is 18330177.

It is not a de Polignac number, because 77103381 - 2¹ = 77103379 is a prime.

It is a super-2 number, since 2×77103381² = 11889862723262322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77103331) 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, 17335 + ... + 21323.

It is an arithmetic number, because the mean of its divisors is an integer number (6822900).

Almost surely, 2^77103381 is an apocalyptic number.

It is an amenable number.

77103381 is a deficient number, since it is larger than the sum of its proper divisors (32063019).

77103381 is a wasteful number, since it uses less digits than its factorization.

77103381 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4388.

The product of its (nonzero) digits is 3528, while the sum is 30.

The square root of 77103381 is about 8780.8530906740. The cubic root of 77103381 is about 425.6223978787.

The spelling of 77103381 in words is "seventy-seven million, one hundred three thousand, three hundred eighty-one".