70497481 has 2 divisors, whose sum is σ = 70497482. Its totient is φ = 70497480.

The previous prime is 70497457. The next prime is 70497529. The reversal of 70497481 is 18479407.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 37319881 + 33177600 = 6109^2 + 5760^2 .

It is a cyclic number.

It is not a de Polignac number, because 70497481 - 2²³ = 62108873 is a prime.

It is a super-3 number, since 3×70497481³ (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (70497431) 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 as a sum of consecutive naturals, namely, 35248740 + 35248741.

It is an arithmetic number, because the mean of its divisors is an integer number (35248741).

Almost surely, 2^70497481 is an apocalyptic number.

It is an amenable number.

70497481 is a deficient number, since it is larger than the sum of its proper divisors (1).

70497481 is an equidigital number, since it uses as much as digits as its factorization.

70497481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 70497481 is about 8396.2778062663. The cubic root of 70497481 is about 413.1025410464.

The spelling of 70497481 in words is "seventy million, four hundred ninety-seven thousand, four hundred eighty-one".