77020102 has 8 divisors (see below), whose sum is σ = 116992800. Its totient is φ = 38022504.

The previous prime is 77020093. The next prime is 77020121. The reversal of 77020102 is 20102077.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×77020102² = 11864192224180808, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 77020102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243577 + ... + 243892.

It is an arithmetic number, because the mean of its divisors is an integer number (14624100).

Almost surely, 2^77020102 is an apocalyptic number.

77020102 is a deficient number, since it is larger than the sum of its proper divisors (39972698).

77020102 is a wasteful number, since it uses less digits than its factorization.

77020102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 487550.

The product of its (nonzero) digits is 196, while the sum is 19.

The square root of 77020102 is about 8776.1097303988. The cubic root of 77020102 is about 425.4691050903.

Adding to 77020102 its reverse (20102077), we get a palindrome (97122179).

The spelling of 77020102 in words is "seventy-seven million, twenty thousand, one hundred two".