64196077 has 4 divisors (see below), whose sum is σ = 70032096. Its totient is φ = 58360060.

The previous prime is 64196051. The next prime is 64196123. The reversal of 64196077 is 77069146.

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 not a de Polignac number, because 64196077 - 2⁷ = 64195949 is a prime.

It is a super-2 number, since 2×64196077² = 8242272604379858, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64199077) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2917993 + ... + 2918014.

It is an arithmetic number, because the mean of its divisors is an integer number (17508024).

Almost surely, 2^64196077 is an apocalyptic number.

It is an amenable number.

64196077 is a deficient number, since it is larger than the sum of its proper divisors (5836019).

64196077 is a wasteful number, since it uses less digits than its factorization.

64196077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5836018.

The product of its (nonzero) digits is 63504, while the sum is 40.

The square root of 64196077 is about 8012.2454405741. The cubic root of 64196077 is about 400.4080772907.

The spelling of 64196077 in words is "sixty-four million, one hundred ninety-six thousand, seventy-seven".