70249763 has 4 divisors (see below), whose sum is σ = 74382120. Its totient is φ = 66117408.

The previous prime is 70249757. The next prime is 70249771. The reversal of 70249763 is 36794207.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 36794207 = 5167 ⋅7121.

It is a cyclic number.

It is not a de Polignac number, because 70249763 - 2⁸ = 70249507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70249703) 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, 2066153 + ... + 2066186.

It is an arithmetic number, because the mean of its divisors is an integer number (18595530).

Almost surely, 2^70249763 is an apocalyptic number.

70249763 is a deficient number, since it is larger than the sum of its proper divisors (4132357).

70249763 is a wasteful number, since it uses less digits than its factorization.

70249763 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4132356.

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 70249763 is about 8381.5131688735. The cubic root of 70249763 is about 412.6181122441.

The spelling of 70249763 in words is "seventy million, two hundred forty-nine thousand, seven hundred sixty-three".