77020034 has 32 divisors (see below), whose sum is σ = 149681280. Its totient is φ = 28864512.

The previous prime is 77020033. The next prime is 77020043. The reversal of 77020034 is 43002077.

It is a super-2 number, since 2×77020034² = 11864171274722312, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 77019991 and 77020009.

It is not an unprimeable number, because it can be changed into a prime (77020033) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 7679 + ... + 14594.

It is an arithmetic number, because the mean of its divisors is an integer number (4677540).

Almost surely, 2^77020034 is an apocalyptic number.

77020034 is a deficient number, since it is larger than the sum of its proper divisors (72661246).

77020034 is a wasteful number, since it uses less digits than its factorization.

77020034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22314.

The product of its (nonzero) digits is 1176, while the sum is 23.

The square root of 77020034 is about 8776.1058562440. The cubic root of 77020034 is about 425.4689798766.

The spelling of 77020034 in words is "seventy-seven million, twenty thousand, thirty-four".