77449097 has 4 divisors (see below), whose sum is σ = 84489936. Its totient is φ = 70408260.

The previous prime is 77449087. The next prime is 77449121. The reversal of 77449097 is 79094477.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 77449097 - 2⁸ = 77448841 is a prime.

It is a super-2 number, since 2×77449097² = 11996725252230818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (77449007) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3520403 + ... + 3520424.

It is an arithmetic number, because the mean of its divisors is an integer number (21122484).

Almost surely, 2^77449097 is an apocalyptic number.

It is an amenable number.

77449097 is a deficient number, since it is larger than the sum of its proper divisors (7040839).

77449097 is a wasteful number, since it uses less digits than its factorization.

77449097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7040838.

The product of its (nonzero) digits is 444528, while the sum is 47.

The square root of 77449097 is about 8800.5168598214. The cubic root of 77449097 is about 426.2575844518.

The spelling of 77449097 in words is "seventy-seven million, four hundred forty-nine thousand, ninety-seven".