902421061 has 4 divisors (see below), whose sum is σ = 905610112. Its totient is φ = 899232012.

The previous prime is 902421049. The next prime is 902421119. The reversal of 902421061 is 160124209.

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 902421061 - 2⁷ = 902420933 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 (902422061) 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, 1594101 + ... + 1594666.

It is an arithmetic number, because the mean of its divisors is an integer number (226402528).

Almost surely, 2^902421061 is an apocalyptic number.

It is an amenable number.

902421061 is a deficient number, since it is larger than the sum of its proper divisors (3189051).

902421061 is a wasteful number, since it uses less digits than its factorization.

902421061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3189050.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 902421061 is about 30040.3239163628. The cubic root of 902421061 is about 966.3543534215.

The spelling of 902421061 in words is "nine hundred two million, four hundred twenty-one thousand, sixty-one".