70081737 has 16 divisors (see below), whose sum is σ = 104693952. Its totient is φ = 41325120.

The previous prime is 70081733. The next prime is 70081771. The reversal of 70081737 is 73718007.

It is not a de Polignac number, because 70081737 - 2² = 70081733 is a prime.

It is a super-2 number, since 2×70081737² = 9822899721874338, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a plaindrome in base 13.

It is a junction number, because it is equal to n+sod(n) for n = 70081698 and 70081707.

It is not an unprimeable number, because it can be changed into a prime (70081733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27478 + ... + 29919.

It is an arithmetic number, because the mean of its divisors is an integer number (6543372).

Almost surely, 2^70081737 is an apocalyptic number.

It is an amenable number.

70081737 is a deficient number, since it is larger than the sum of its proper divisors (34612215).

70081737 is a wasteful number, since it uses less digits than its factorization.

70081737 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57448.

The product of its (nonzero) digits is 8232, while the sum is 33.

The square root of 70081737 is about 8371.4835602777. The cubic root of 70081737 is about 412.2888778223.

The spelling of 70081737 in words is "seventy million, eighty-one thousand, seven hundred thirty-seven".