70361749 has 4 divisors (see below), whose sum is σ = 70384864. Its totient is φ = 70338636.

The previous prime is 70361737. The next prime is 70361777. The reversal of 70361749 is 94716307.

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 70361749 - 2¹¹ = 70359701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70361779) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6147 + ... + 13360.

It is an arithmetic number, because the mean of its divisors is an integer number (17596216).

Almost surely, 2^70361749 is an apocalyptic number.

It is an amenable number.

70361749 is a deficient number, since it is larger than the sum of its proper divisors (23115).

70361749 is a wasteful number, since it uses less digits than its factorization.

70361749 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23114.

The product of its (nonzero) digits is 31752, while the sum is 37.

The square root of 70361749 is about 8388.1910445578. The cubic root of 70361749 is about 412.8372490230.

The spelling of 70361749 in words is "seventy million, three hundred sixty-one thousand, seven hundred forty-nine".