70436481 has 4 divisors (see below), whose sum is σ = 93915312. Its totient is φ = 46957652.

The previous prime is 70436461. The next prime is 70436521. The reversal of 70436481 is 18463407.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 70436481 - 2¹⁷ = 70305409 is a prime.

It is a super-2 number, since 2×70436481² = 9922595711326722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (70436411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11739411 + ... + 11739416.

It is an arithmetic number, because the mean of its divisors is an integer number (23478828).

Almost surely, 2^70436481 is an apocalyptic number.

It is an amenable number.

70436481 is a deficient number, since it is larger than the sum of its proper divisors (23478831).

70436481 is a wasteful number, since it uses less digits than its factorization.

70436481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23478830.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 70436481 is about 8392.6444580954. The cubic root of 70436481 is about 412.9833569930.

Adding to 70436481 its reverse (18463407), we get a palindrome (88899888).

The spelling of 70436481 in words is "seventy million, four hundred thirty-six thousand, four hundred eighty-one".