70836401 has 2 divisors, whose sum is σ = 70836402. Its totient is φ = 70836400.

The previous prime is 70836383. The next prime is 70836431. The reversal of 70836401 is 10463807.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60078001 + 10758400 = 7751^2 + 3280^2 .

It is an emirp because it is prime and its reverse (10463807) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-70836401 is a prime.

It is a super-3 number, since 3×70836401³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (70836431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 35418200 + 35418201.

It is an arithmetic number, because the mean of its divisors is an integer number (35418201).

Almost surely, 2^70836401 is an apocalyptic number.

It is an amenable number.

70836401 is a deficient number, since it is larger than the sum of its proper divisors (1).

70836401 is an equidigital number, since it uses as much as digits as its factorization.

70836401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4032, while the sum is 29.

The square root of 70836401 is about 8416.4363598853. The cubic root of 70836401 is about 413.7634863851.

The spelling of 70836401 in words is "seventy million, eight hundred thirty-six thousand, four hundred one".