70290481 has 4 divisors (see below), whose sum is σ = 73990000. Its totient is φ = 66590964.

The previous prime is 70290469. The next prime is 70290499. The reversal of 70290481 is 18409207.

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 70290481 - 2¹⁵ = 70257713 is a prime.

It is a super-2 number, since 2×70290481² = 9881503438422722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70290401) 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, 1849731 + ... + 1849768.

It is an arithmetic number, because the mean of its divisors is an integer number (18497500).

Almost surely, 2^70290481 is an apocalyptic number.

It is an amenable number.

70290481 is a deficient number, since it is larger than the sum of its proper divisors (3699519).

70290481 is a wasteful number, since it uses less digits than its factorization.

70290481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3699518.

The product of its (nonzero) digits is 4032, while the sum is 31.

The square root of 70290481 is about 8383.9418533289. The cubic root of 70290481 is about 412.6978170885.

Adding to 70290481 its reverse (18409207), we get a palindrome (88699688).

The spelling of 70290481 in words is "seventy million, two hundred ninety thousand, four hundred eighty-one".