77003012 has 6 divisors (see below), whose sum is σ = 134755278. Its totient is φ = 38501504.

The previous prime is 77002999. The next prime is 77003023. The reversal of 77003012 is 21030077.

It can be written as a sum of positive squares in only one way, i.e., 46022656 + 30980356 = 6784^2 + 5566^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9625373 + ... + 9625380.

It is an arithmetic number, because the mean of its divisors is an integer number (22459213).

Almost surely, 2^77003012 is an apocalyptic number.

It is an amenable number.

77003012 is a deficient number, since it is larger than the sum of its proper divisors (57752266).

77003012 is a wasteful number, since it uses less digits than its factorization.

77003012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19250757 (or 19250755 counting only the distinct ones).

The product of its (nonzero) digits is 294, while the sum is 20.

The square root of 77003012 is about 8775.1360103419. The cubic root of 77003012 is about 425.4376336316.

Adding to 77003012 its reverse (21030077), we get a palindrome (98033089).

The spelling of 77003012 in words is "seventy-seven million, three thousand, twelve".