77012495 has 16 divisors (see below), whose sum is σ = 106394688. Its totient is φ = 52419840.

The previous prime is 77012479. The next prime is 77012497. The reversal of 77012495 is 59421077.

77012495 = 1905² + 1906² + ... + 1925².

It is not a de Polignac number, because 77012495 - 2⁴ = 77012479 is a prime.

It is a super-2 number, since 2×77012495² = 11861848772250050, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77012497) 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, 3236 + ... + 12825.

It is an arithmetic number, because the mean of its divisors is an integer number (6649668).

Almost surely, 2^77012495 is an apocalyptic number.

77012495 is a deficient number, since it is larger than the sum of its proper divisors (29382193).

77012495 is a wasteful number, since it uses less digits than its factorization.

77012495 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16210.

The product of its (nonzero) digits is 17640, while the sum is 35.

The square root of 77012495 is about 8775.6763272126. The cubic root of 77012495 is about 425.4550972752.

The spelling of 77012495 in words is "seventy-seven million, twelve thousand, four hundred ninety-five".