2021700754 has 4 divisors (see below), whose sum is σ = 3032551134. Its totient is φ = 1010850376.

The previous prime is 2021700731. The next prime is 2021700773. The reversal of 2021700754 is 4570071202.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4570071202 = 2 ⋅2285035601.

It can be written as a sum of positive squares in only one way, i.e., 1906632225 + 115068529 = 43665^2 + 10727^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505425187 + ... + 505425190.

Almost surely, 2^2021700754 is an apocalyptic number.

2021700754 is a deficient number, since it is larger than the sum of its proper divisors (1010850380).

2021700754 is a wasteful number, since it uses less digits than its factorization.

2021700754 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1010850379.

The product of its (nonzero) digits is 3920, while the sum is 28.

The square root of 2021700754 is about 44963.3267674891. The cubic root of 2021700754 is about 1264.4615400620.

Adding to 2021700754 its reverse (4570071202), we get a palindrome (6591771956).

The spelling of 2021700754 in words is "two billion, twenty-one million, seven hundred thousand, seven hundred fifty-four".