70997763 has 16 divisors (see below), whose sum is σ = 100599840. Its totient is φ = 44538368.

The previous prime is 70997761. The next prime is 70997767. The reversal of 70997763 is 36779907.

It is not a de Polignac number, because 70997763 - 2¹ = 70997761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70997761) 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, 12331 + ... + 17147.

It is an arithmetic number, because the mean of its divisors is an integer number (6287490).

Almost surely, 2^70997763 is an apocalyptic number.

70997763 is a deficient number, since it is larger than the sum of its proper divisors (29602077).

70997763 is an equidigital number, since it uses as much as digits as its factorization.

70997763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4871 (or 4837 counting only the distinct ones).

The product of its (nonzero) digits is 500094, while the sum is 48.

The square root of 70997763 is about 8426.0170306023. The cubic root of 70997763 is about 414.0774260660.

The spelling of 70997763 in words is "seventy million, nine hundred ninety-seven thousand, seven hundred sixty-three".