77266485 has 48 divisors (see below), whose sum is σ = 139174464. Its totient is φ = 39626496.

The previous prime is 77266481. The next prime is 77266489. The reversal of 77266485 is 58466277.

77266485 = T₄₄ + T₄₅ + ... + T₇₇₃.

It is an interprime number because it is at equal distance from previous prime (77266481) and next prime (77266489).

It is not a de Polignac number, because 77266485 - 2² = 77266481 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 77266485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77266481) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 140982 + ... + 141528.

It is an arithmetic number, because the mean of its divisors is an integer number (2899468).

Almost surely, 2^77266485 is an apocalyptic number.

It is an amenable number.

77266485 is a deficient number, since it is larger than the sum of its proper divisors (61907979).

77266485 is a wasteful number, since it uses less digits than its factorization.

77266485 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 674 (or 671 counting only the distinct ones).

The product of its digits is 564480, while the sum is 45.

The square root of 77266485 is about 8790.1356644821. The cubic root of 77266485 is about 425.9223061379.

The spelling of 77266485 in words is "seventy-seven million, two hundred sixty-six thousand, four hundred eighty-five".