620070 has 32 divisors (see below), whose sum is σ = 1624320. Its totient is φ = 150240.

The previous prime is 620051. The next prime is 620099. The reversal of 620070 is 70026.

620070 = T₁₄₃ + T₁₄₄ + ... + T₁₈₇.

620070 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 610 + ... + 1269.

It is an arithmetic number, because the mean of its divisors is an integer number (50760).

2⁶²⁰⁰⁷⁰ is an apocalyptic number.

620070 is an abundant number, since it is smaller than the sum of its proper divisors (1004250).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

620070 is a wasteful number, since it uses less digits than its factorization.

620070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1900.

The product of its (nonzero) digits is 84, while the sum is 15.

The square root of 620070 is about 787.4452361911. The cubic root of 620070 is about 85.2733988052.

Adding to 620070 its reverse (70026), we get a palindrome (690096).

The spelling of 620070 in words is "six hundred twenty thousand, seventy".