70778097 has 32 divisors (see below), whose sum is σ = 118876800. Its totient is φ = 41259456.

The previous prime is 70778093. The next prime is 70778101. The reversal of 70778097 is 79087707.

It is an interprime number because it is at equal distance from previous prime (70778093) and next prime (70778101).

It is not a de Polignac number, because 70778097 - 2² = 70778093 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70778093) 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 31 ways as a sum of consecutive naturals, for example, 1363 + ... + 11975.

It is an arithmetic number, because the mean of its divisors is an integer number (3714900).

Almost surely, 2^70778097 is an apocalyptic number.

It is an amenable number.

70778097 is a deficient number, since it is larger than the sum of its proper divisors (48098703).

70778097 is a wasteful number, since it uses less digits than its factorization.

70778097 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10654 (or 10648 counting only the distinct ones).

The product of its (nonzero) digits is 172872, while the sum is 45.

The square root of 70778097 is about 8412.9719481287. The cubic root of 70778097 is about 413.6499351239.

The spelling of 70778097 in words is "seventy million, seven hundred seventy-eight thousand, ninety-seven".