77628098 has 16 divisors (see below), whose sum is σ = 117784800. Its totient is φ = 38369376.

The previous prime is 77628077. The next prime is 77628107. The reversal of 77628098 is 89082677.

It is a super-2 number, since 2×77628098² = 12052243198195208, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73478 + ... + 74526.

It is an arithmetic number, because the mean of its divisors is an integer number (7361550).

Almost surely, 2^77628098 is an apocalyptic number.

77628098 is a deficient number, since it is larger than the sum of its proper divisors (40156702).

77628098 is a wasteful number, since it uses less digits than its factorization.

77628098 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1441.

The product of its (nonzero) digits is 338688, while the sum is 47.

The square root of 77628098 is about 8810.6809044477. The cubic root of 77628098 is about 426.5857218136.

The spelling of 77628098 in words is "seventy-seven million, six hundred twenty-eight thousand, ninety-eight".